Insect of the Week: the American Lady

Adapted from page 49 of Butterfly Gardening:

Some American Ladies overwinter as adults in northern climates, so sightings of this wide-ranging butterfly often begin early in spring. The actual northern limit of American Lady overwintering has not been firmly established, and questions persist regarding the life stage in which they overwinter. Some reports suggest that only adults overwinter, while others indicate that both adults and chrysalides overwinter. Additionally, American Ladies are migrants, so as the weather warms each spring, butterflies from the south move northward, laying eggs as they progress. However, one fact is clear; American Ladies are widespread and common in gardens!

This patch of Parlin’s pussytoes had only recently been planted before an American Lady stopped by to lay eggs.
Photo credit: Jan Dixon.

To the nascent butterfly watcher, American Ladies look quite similar to Painted Ladies, or in the western United States, to West Coast Ladies as well. Painted Lady, with more than 100 recorded host plants, needs no special planting plans, and West Coast Lady caterpillars accept a variety of plant, some of which are weeds, but if you wish to watch the life cycle of American Lady, you will need to provide its caterpillar food plants. These are native plants that are lovely to include in gardens—western pearly everlasting, some of the species of pussytoes, and the similar but rather unattractively named cudweed.

Pussytoes are a group of plants that are easy to incorporate into gardens or wild plantings—their cultural needs are not great, and in fact they can be used as a ground cover in dry areas with poor soil. Approximately 40 different species of pussytoes are native in the United States, although many are not commonly for sale. Native-plant nurseries usually carry at least one species, with shale barren pussytoes, rosy pussytoes, and the oddly named woman’s tobacco being fairly common.

Butterfly Gardening: The North American Butterfly Association Guide
By Jane Hurwitz

Butterfly gardening creates habitats that support butterflies, connecting us with some of the most beautiful creatures in the natural world and bringing new levels of excitement and joy to gardening. In this engaging and accessible guide, lavishly illustrated with more than two hundred color photographs and maps, accomplished butterfly gardener Jane Hurwitz presents essential information on how to choose and cultivate plants that will attract a range of butterflies to your garden and help sustain all the stages of their life cycles.

An indispensable resource for aspiring and experienced butterfly gardeners alike, Butterfly Gardening is the most gardener-friendly source on the subject, covering all the practical details needed to create a vibrant garden habitat that fosters butterflies. It tells you which plants support which butterflies, depending on where you live; it describes what different butterflies require in the garden over the course of their lives; and it shows you how to become a butterfly watcher as well as a butterfly gardener.

While predominantly recommending regionally native plants, the book includes information on non-native plants. It also features informative interviews with experienced butterfly gardeners from across the United States. These gardeners share a wealth of information on plants and practices to draw butterflies to all kinds of gardens–from small suburban gardens to community plots and larger expanses.

Whether you are a gardener who wants to see more butterflies in your garden, a butterfly enthusiast who wants to bring that passion to the garden, or someone who simply wants to make their garden or yard friendlier to Monarchs or other butterflies, this is a must-have guide.

  • An essential guide for aspiring and experienced butterfly gardeners
  • Encourages readers to rethink gardening choices to support butterflies and other pollinators in their gardens and communities
  • Introduces gardeners to butterfly watching
  • Includes regional lists of plant species that are time-proven to help sustain butterflies and their caterpillars
  • Features informative interviews with expert butterfly gardeners from across the United States



Keith Whittington: Tolerating Campus Dissent, Left and Right

WhittingtonThe reminders come nearly daily that tolerating freedom of speech and thought on college campuses—and in American society—is hard. It is very easy to say that we love freedom of speech in the abstract. It is much harder to adhere to that conviction when confronted with speech that we ourselves find to be, well, intolerable. When we encounter ideas or rhetoric that we find abhorrent, we are tempted to look for loopholes in the freedom of speech, to rationalize efforts to silence those who make us uncomfortable. This instinct is only natural and all too human, but it is an instinct at odds with the requirements of a liberal democracy and very much at odds with the ideals of a modern university.

The passing of Barbara Bush unfortunately became the occasion for another such reminder. An English professor at California State University, Fresno took to Twitter to celebrate the former first lady’s death, denouncing Bush as a “racist” and the mother of a “war criminal.” No stranger to provocative Twitter posts, the professor seemed to initially revel in the outrage she had generated before retreating from the increasingly intense public glare.

Fresno State president Joseph Castro was soon engaged in damage control, but in doing so did not represent the principles of either the university or the Constitution well. Castro did not content himself with reminding members of the public that the professor spoke only for herself and not the institution and did not even get around to emphasizing that universities are home to a large number of independent-minded individuals who hold a wide range of views and frequently disagree with one another. Instead, he chose to join the outraged public in denouncing a member of his own faculty for expressing views “contrary to the core values of our University,” which he identified as values of “empathy” and “respect.” The president subsequently emphasized that “we are all held accountable for our actions.” Indeed, the tweet was, in Castro’s view, “beyond free speech,” apparently because it was “disrespectful.”

Castro is, of course, correct that everyone is accountable for their actions. The question is what accounting is appropriate for appalling opinions expressed on a personal social media account. The speech of university professors can and should be criticized when it is wrong. Students and colleagues may choose to avoid quarrelsome professors. University professors are subject to discipline, and even termination, if they engage in professional misconduct. When American citizens who happen to be members of the faculty at a state university express unpopular political opinions in the public sphere, their speech is constitutionally protected from reprisals by state government officials, including university presidents. When members of the campus community spend their free time engaging in public debate, any university leader should refrain from asserting that “disrespectful,” uncivil, or odious comments are beyond the bounds of freedom of speech and subject to official sanction.

Universities should strive to nurture campus communities that are open to intellectual diversity and raucous debate. University professors should strive, even in their free time, to contribute positively to our social discourse and not to drag it further into the gutter. But freedom of speech is often messy and sometimes unpleasant. The disagreements among members of a diverse society are often deep and intense, and those disagreements will sometimes be expressed with passion. We are quick to recognize when others have offended us, but slow to recognize when we have given offense. We make greater progress in overcoming those disagreements and in making productive use of unconventional thinking, however, when we accept that we will sometimes be offended and we tolerate that with which we fervently disagree. Not every expressed idea is a good one. Not every disagreement will give way to greater insight. But intellectual and social progress is best made when we tolerate dissent rather than shout it down, when we criticize rather than punish, when we turn away from the provocateur rather than fan the flames.

Keith E. Whittington is the William Nelson Cromwell Professor of Politics at Princeton University and a leading authority on American constitutional theory and law. He is the author of Speak Freely: Why Universities Must Defend Free Speech.

David Weintraub on Life on Mars: What to Know Before We Go

WeintraubDoes life exist on Mars? The question has captivated humans for centuries, but today it has taken on new urgency. NASA plans to send astronauts to Mars orbit by the 2030s. SpaceX wants to go by 2024, while Mars One wants to land a permanent settlement there in 2032. As we gear up for missions like these, we have a responsibility to think deeply about what kinds of life may already inhabit the plane—and whether we have the right to invite ourselves in. This book tells the complete story of the quest to answer one of the most tantalizing questions in astronomy. But it is more than a history. Life on Mars explains what we need to know before we go.

Why does Mars matter?

Are we alone in the universe? Earth might be an oasis of life, the only place in the universe where living beings of any kind exist. On the other hand, life might be as common across the universe as the hundreds of billions of stars and planets that populate it. Mars is the closest habitable world in the universe where we can begin to learn about extraterrestrial life. If life is common, if the genesis of life is possible given the right environment and the necessary elemental materials, some form of life might exist right next door, on Mars, and if life were discovered on Mars that is of an independent origin than life on Earth, we could safely predict that life is common throughout the universe. Such a discovery would be extraordinary. Mars Matters.

Haven’t we already discovered life on Mars?

Maybe. Maybe not. Some astronomers believe that evidence from NASA’s Viking Lander biology experiments strongly suggest the presence of past or present life on Mars. Other astronomers believe that evidence found in a meteorite from Mars is evidence of ancient life on Mars. Still others believe that methane gas discovered in the atmosphere of Mars is evidence for life on Mars today. However, no consensus exists. None of the data is definitive that would prove or disprove the hypothesis that Mars once harbored or still nurtures life. The jury is still out.

Could life on Mars and life on Earth be related?

Could be. In order for a meteorite to get knocked off Mars and arrive on Earth, several things must happen. First, an asteroid of significant size must hit the surface of Mars and some of the debris from that impact must be lofted off the surface intact and at high speed. The impact debris kicked off the surface then must drill a hole through the Martian atmosphere and emerge above the atmosphere with a high enough velocity (known as “escape velocity”) to escape the gravitational clutches of Mars. Then that object has to end up on an orbit that intersects with that of Earth. All of these things are improbable but possible. Have they actually happened?

A meteoritic breakthrough occurred in 1982, when the leader of the 1981–1982 U.S. search party looking for meteorites in Antarctica found a tiny, unusual-looking rock now known as ALH 81005, which showed mineralogical similarities to lunar rocks. By 1983, several teams of meteoriticists, working independently, had confirmed that this specimen was, without any doubt, a lunar meteorite. For the first time, we had evidence that meteorites can come from objects as large as our Moon.

Then, in 1985, a geochemist proved that the gases trapped inside air bubbles inside EETA 79001, another Antarctic meteorite, this one collected in 1979 in the Elephant Moraine region, were a perfect match to the gases found by NASA’s Viking lander in the atmosphere of Mars. Therefore, without any doubt, EETA 79001 itself was a piece of Mars. We now know of several dozen meteorites that are, without question, of Martian origin.

If a meteorite can travel from Mars to Earth (or vica versa), then life could be transported by this vehicle from one planet to the other.

Why should you care about microscopic Martians?

Do microscopic Martians matter? Yes. Microscopic Martians, if they exist, would be astoundingly important to our understanding of life in the universe. A second genesis, life that began completely independently of terrestrial origins, might have occurred on Mars. Even if life on Mars is limited to bacterial-sized beings, buried underground or hiding deep in a crevice where they are protected from dangerous ultraviolet radiation and cosmic rays and where they can find water, those beings would teach us something of enormous importance about the existence of life beyond Earth. Life on Mars that is independent of life on Earth would send us a clear message about exobiology: life could happen anywhere and everywhere that conditions allow. Alternatively, if we find microscopic life that is DNA-based, we also receive an enormously important message about exobiology and clues about our distant, evolutionary past: such a discovery would tell us that life is easily transported across interplanetary space. Once life gets started, it can spread, and thus, whether we are Martians or the Martians are us, we’re all related. Finally, if we discover that Mars is barren and sterile, without even microscopic Martians, we will know that we are more alone in the solar system and perhaps in the galaxy and universe than many of us currently think.

How Earth-like is Mars? And does that matter?

Mars is very nearly a twin of Earth. Like Earth, Mars is a small rocky planet with a solid surface and an atmosphere.  Mars orbits the Sun at a similar distance as Earth, where the amount of solar heating is sufficient, for at least part of every year, to allow the possibility of the existence of liquid water on at least parts of the surfaces of both planets. The length of the day and night of Mars — 24 hours, 39 minutes — is extremely similar to the day/night spin (24 hours) of Earth. The obliquity of Mars (the 25 degree tilt of Mars’ rotation axis with respect to the plane of its orbit around the Sun) is almost the same as the tilt of Earth (23.5 degrees). These tilts generate seasonal changes, and the seasonal changes of Mars are very similar to the seasons we find here on Earth. The polar caps on Mars, which are mostly water ice, closely resemble the ice caps on Earth. The thin Martian atmosphere behaves like the thicker atmosphere of Earth, with clouds, frost that condenses on the surface, and winds that blow across the surface of the planet. And Mars has large reservoirs of water, just like Earth.  Yes, differences exist. The mass of Mars is smaller than the mass of Earth; the density and composition of the Martian atmosphere are different from those of Earth; Earth has a strong magnetic field while Mars does not; Mars’ water is either frozen or buried deep beneath the surface, while most of Earth’s water is either frozen or liquid and is at or near the surface.  But if you’re looking for an Earth-like planet where Earth-like forms of life could thrive, Mars is a great place to look.

Why did you decide to write this book?  Why should someone read your book?

I think, without any doubt, that humanity will colonize Mars in the near future, perhaps within a decade, and most certainly by the end of the twenty first century. When we settle on Mars, we will contaminate Mars. If any life exists there today, we almost certainly will alter or destroy it in the same way that human and animal diseases have devastated the native species on every continent and island on Earth to which human explorers have extended their reach, putting life forms that have been isolated and protected from other life forms in harm’s way. After we place human colonies on Mars, we will lose the opportunity to discover, with certainty, whether Mars ever was or still is inhabited.

We have one chance to make these discoveries, and that is the present time before we colonize Mars. I think the knowledge we might gain about Mars and Martian life before we send colonists to the red planet is so unique and valuable that we humans should, collectively, debate whether the 2020s and 2030s are the right time to send the first wave of settlers to Mars. Perhaps we should wait just a bit longer, and let robotic exploration continue until the debate about life on Mars is settled. With this book, I hope to help trigger that public debate before it is too late.

David A. Weintraub is professor of astronomy at Vanderbilt University. He is the author of How Old Is the Universe? and Is Pluto a Planet?: A Historical Journey through the Solar System. He lives in Nashville.

Dr. John C. Hulsman: The Ten Commandments of Political Risk

Disturb us, Lord, when we are too well pleased with ourselves
When our dreams have come true because we have dreamed too little
When we arrive safely because we sailed too close to the shore.

Disturb us, Lord, to dare more boldly, to venture on wider seas
Where storms will show your mastery
Where losing sight of land, we shall find the stars.

—Excerpts from Sir Francis Drake’s prayer, 1577 (apocryphal)

HulsmanThe great goal, the Everest of my book, has been to identify the historical elements that comprise the rules of the road for mastering political risk analysis and to holistically put our ten commandments to use in explaining the baffling world we presently live in. Having discovered these commandments—and illuminated them through the use of historical story-telling, deriving them from real-world policy situations throughout the ages—we can get to the Holy Grail of actual understanding.

Here at the end of our story, through the use of this unique heuristic method, we have delineated the long and neglected history of political risk analysis, linking this important tale to the broader efforts of both business and political leaders to master risk in general. Confident in what geopolitical risk analysis has been, is, and can be, it is clear that the Delphic dream of soothsaying—in a limited way, over limited issues, for a limited period of time—can be partially fulfilled.

  • “We are the risk.” As the history surrounding Sejanus and the decline and fall of the Roman Empire makes clear (alongside the corroborating tale of present-day Europe’s decadent decline), geopolitical analysts have a terrible time looking in the mirror and seeing that the society they are part of can itself be the major geopolitical risk problem.


  • Gaming out “lunatics.” Far too often geopolitical risk analysts let those with very different belief systems off the hook by lazily assuming that they must be crazy, rather than looking for the method to their madness. As the story of “The Old Man of the Mountain” and the Third Crusade (with inter-chapters on both Charles Manson and ISIS) makes clear, there is almost always an internal logic to any seemingly mad geopolitical interlocutor that can be followed and assessed.


  • Gaming out “chess players.” Amidst the daily tumult of a constant barrage of information, it is easy to lose sight of the intellectual needle in the haystack: the assessment of “chess players,” those geopolitical decision-makers who have stable, rational, coherent, long-term strategies in place to further their geopolitical goals. As reviewing the history of Niccolo Machiavelli and Pope Julius II (with an inter-chapter on George Washington and Alexander Hamilton) illuminates, finding these rare geostrategic birds is well worth the effort, as once they are identified (which is difficult), their future actions can rather easily be predicted.


  • Recognizing game changers. As the stirring story of John Adams in the sultry summer of 1776 makes clear, seeing the bigger picture—discerning how specific contemporaneous events fit into the larger historical pattern—is a mighty tool in political risk analysis. Separating the wheat from the chaff and intellectually drilling down on what really matters and its historical meaning (as we see both Adams and inter-chapter hero Winston Churchill doing in very different historical contexts) allows the political risk analyst as well as the foreign policy practitioner to see the world as it actually is.


  • Balance is the key to foreign policy. Having discovered the secrets of one major driver of geopolitics—be it macroeconomics, geopolitics, or cultural power—far too often analysts quickly forget that there are others and that it is the mix that explains everything. The twin stories of a beleaguered Venetian Republic and a seemingly all-conquering Napoleon in 1797 allow a dual critique of both an economics-only and overly militaristic policies and the doom to which both one-sided initiatives inevitably lead.


  • If you are digging yourself an intellectual hole in foreign policy analysis—stop. The “losing gambler in Vegas” syndrome affects both policy-makers and analysts. As the legendary Robert E. Lee found to his supreme peril at Gettysburg (and also “the best and the brightest” of the Kennedy and Johnson administrations as they met their nemesis in Indochina), pushing ahead with an already failed policy in a desperate effort to recoup past losses leads to calamity.


  • Know your country’s place in the world. The singular case of the late Victorian titan Lord Salisbury—who bravely and correctly righted Britain’s foreign policy to fit the paradox of its relatively declining but still dominant place in the world of the 1890s—highlights this vital requirement for both policy-makers and analysts alike. Only by fearlessly and correctly assessing your country’s true place in the world (as the inter-chapter on the Genro of Japan makes clear happened across the globe from Salisbury a generation earlier) can you pursue successful political risk analysis.


  • Do not put all your eggs in one strategic basket. Distantly related to the “losing gambler in Vegas” syndrome, the “promised land fallacy” besets decision-makers and analysts who ruinously rely on one overall strategy to magically attempt to alter their country’s overall geopolitical position in the world. In the case of Wilhelmine Germany, Admiral Von Tirpitz’s disastrous plan to challenge British naval might (echoing the inter-chapter on Soviet leader Nikita Khrushchev’s equally ruinous “Wars of National Liberation” gambit) helped lead to the Great War and Germany’s destruction.


  • Know the nature of the world you are living in. The trials and tribulations of Beatle George Harrison (with the inter-chapter focusing on the diametrically opposed case of the fall of Brian Jones and the rise of the Rolling Stones) and the stunning, lightning-quick dismemberment of his band dramatically underline that successful systems can collapse in the blink of an eye if their underlying power realities change, failing to any longer reflect the systemic power facts on the ground that created such a system in the first place. Policy-makers as well as political risk analysts must know both the nature of the global system they are living in (is it characterized by one great power, two, or many?) as well as if that system is durable, fragile, or evolving.


  • Prepare for the “butterfly effect.” The telling present-day case of Deng Xiaoping and the colossal success he made of both Chinese foreign and economic policy must not obscure the reality that East Asia today sits on a powder keg, a single random event away from 1914; just one drunken Chinese sea captain could quite plausibly upset the strategic equilibrium in Asia. The best policy-makers and political risk analysts (as the inter-chapter example of Harold Macmillan also makes clear) see the weaknesses in even the most successful foreign policies, having resilient initiatives at the ready to stave off seemingly unexpected disasters.


In traveling far from home, as Sir Francis Drake bid us to do in the swashbuckling, mesmerizing prayer that opens this article and To Dare More Boldly, our journey through history has been bountifully rewarded. For yes, within limits, the future can be foretold through the use of political risk analysis. Truly venturing far from our intellectual shore, in daring more boldly, we have come to see the stars. 

Dr. John C. Hulsman is the president and cofounder of John C. Hulsman Enterprises, a successful global political risk consulting firm. For three years, Hulsman was the Senior Columnist for City AM, the newspaper of the city of London. Hulsman is a Life Member of the Council on Foreign Relations, the preeminent foreign policy organization. The author of all or part of 14 books, Hulsman has given over 1520 interviews, written over 650 articles, prepared over 1290 briefings, and delivered more than 510 speeches on foreign policy around the world. His most recent work is To Dare More Boldly: The Audacious Story of Political Risk.

Austin Smith: Flyover Country


In celebration of National Poetry Month, Austin Smith has provided recordings of a selection of poems from his latest collection with the Princeton Series of Contemporary Poets: Flyover Country

Elegy for Thomas Merton

Thomas Merton was a Trappist monk. He lived at the Abbey of Gethsemani in Kentucky from 1942 to 1968. A prolific writer, he is best-known for his autobiography, The Seven Storey Mountain. In addition to his writings on the contemplative life, he wrote about race, social justice, and passivism. In my elegy for Merton, I focus on the strange circumstances surrounding his death. In 1968 Merton left the monastery to travel to India to meet the Dalai Lama and to attend an interfaith conference of monks in Thailand. During the conference he stepped out of the bath one day, grabbed hold of a floor fan and was electrocuted. Ironically, his body was flown back to Kentucky for burial in a plane that also carried the bodies of American soldiers who’d died in Vietnam, a war he’d vehemently spoken out against. I’ve always found the circumstances surrounding Merton’s death strange. Though I don’t mention it in the poem, his last words, upon concluding his talk at the conference, were: “Now I’m going to disappear.” My poem explores the idea of the fan as a stalker, finding him in the quiet Kentucky woods and drawing him to Thailand. But more broadly, the poem is an elegy for a writer and thinker who has had a huge impact on my life.

Into the Corn

Growing up on a dairy farm in Illinois, I have a distinct memory of being afraid of going too far into a field of corn, particularly if the corn was over my head. Though most people, forgivably, think of Stephen King when they think of children and corn, my poem is more connected with folklore surrounding cornfields, based on stories recorded by Sir James Frazier in The Golden Bough. I am particularly interested in this story, which Frazier relates: “Commonly the spirit of the ripe corn is conceived, not as dead, but as old, and hence it goes by the name of the Old Man or the Old Woman. But in some places the last sheaf cut at harvest, which is generally believed to be the seat of the corn spirit, is called ‘the Dead One’: children are warned against entering the corn-fields because death sits in the corn and, in a game played by Saxon children in Transylvania at the maize harvest, Death is represented by a child completely covered in maize leaves.” Upon reading this piece of folklore, I immediately felt a chill in my spine: I resonated deeply with this image of death as a child covered in corn leaves. This story, coupled with my childhood fear that one could go too far into the corn, get lost, and never be found, prompted this poem.

Ode to Flour

When I was growing up my mother baked bread for sale (her catering company was called Grateful Bread). She baked in the farmhouse kitchen, and I remember coming home from school and finding the table and counter covered in flour. My memories of those afternoons conjured this ode. But another catalyst for this poem was a desire I felt to celebrate something simple and perhaps often overlooked. Much of the subject matter in Flyover Country is dark, involving violence, war, environmental degradation. I wanted to write a poem of levity (no bread pun intended), and I mention this desire in the first few lines of the poem. Indeed, it was this urge to praise something that literally made me take up the pen. I remember writing this poem somewhat obliquely, not paying it my full attention for fear that some of the humor and buoyancy of the tone would be lost if I bore down on it too hard, and perhaps it was for this reason that the last line snuck up on me.

Austin Smith grew up on a family dairy farm in northwestern Illinois. He is the author of a previous poetry collection, Almanac (Princeton), and his work has appeared in The New Yorker, Poetry Magazine, Ploughshares, and many other publications. He teaches at Stanford University and lives in Oakland, California.

Mark Serreze: The Value of Climate Science


Modern climate science is based on facts, physics and testable hypotheses. There is ample room for debate about what to do about climate change, but the underlying science is rock solid.

Modern climate science builds on a long track record of scientific inquiry on environmental and health issues that has benefited society. Through scientific analysis, it was discovered that DDT, widely used as a pesticide, was becoming concentrated in the food chain. As a result, laws were passed to curb its use. Tetraethyl lead was once added to gasoline to reduce engine knock. Through science, we learned that lead in the environment poses severe health hazards, so the use of lead in gasoline was consequently phased out. It was through science that we learned how CFCs were destroying stratosphere ozone. In turn, through many decades of research, we have developed a strong understanding of how the climate system works, how humans are affecting climate, and what is in store if society continues to follow its current path without taking corrective action.

Until the middle off the 20th century, climate science was pretty much a backwater. Climatologists, by and large, were bookkeepers, compiling records of temperature, precipitation and other variables. From these records, much effort was spent classifying climate types around the world, ranging from tropical rain forests to monsoons to semiarid steppes to deserts. Climate data certainly had value to farmers and the home gardener, civil and structural engineers and the military planning. But the focus was largely on statistics, with relatively little emphasis on climate dynamics – the processes that control the climate system and how it may evolve. There were notable exceptions, such as Svante Arrhenius, who, in the late 19th century, speculated on how rising concentrations of carbon dioxide would lead to warming, but for the most part, climatology was a largely descriptive and rather boring field of science.

The shift from simple bookkeeping to a more physically-based view of how the climate system works paralleled developments in meteorology—the science of weather prediction. The rapid advances in meteorology following the Second World War, in turn, largely paralleled the development of numerical computers. With computers, it became possible to translate the physical processes controlling weather systems into computer code. It was readily understood that the physics controlling weather were part of the broader set of physics that control climate, which led to the development of global climate models, or GCMs for short. GCMs were quickly seen as powerful tools to understand not just how the global climate system works, but how climate could change in response to things like brightening the sun or altering the level of greenhouse gases in the atmosphere.

Using early generation GCMs developed in the 1970, pioneers like Jim Hansen of NASA, and Suki Manabe of the Geophysical Fluid Dynamics Laboratory in Princeton confidently predicted that our planet was going to warm up, and that the Arctic would warm up the most, something that we now call Arctic amplification. But the more mundane chore of compiling climate records never stopped, and indeed, its value grew, for it was only with ever-lengthening climate records that it could be determined if things were actually changing. And as these records grew, it slowly became clear that the planet was indeed warming. From numerous GCM experiments, it also became clear that this warming, and all the things that go with it, such as the Arctic’s shrinking sea ice cover and Artic amplification, could only be explained as a response to rising levels of carbon dioxide in the atmosphere.

Climate scientists of today need to know:

  • The processes that can change how the earth absorbs and emits energy
  • How the atmosphere and weather systems work
  • How the atmosphere interacts with the oceans
  • How the atmosphere interacts with the land surface
  • And how the land interactions with the ocean.

But whatever our area of specialty, we all try and make contributions to our understanding, but those contributions are, to the best of our ability, based on facts, physics, and sound methodology. In science, there is no room for wishful thinking. As a society, need to get past partisan bickering, step back, and listen to what climate science is telling us: the climate is changing, we know why, and the implications must not be ignored. This is the value of climate science.

Mark C. Serreze is director of the National Snow and Ice Data Center, professor of geography, and a fellow of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado at Boulder. He is the coauthor of The Arctic Climate System. He lives in Boulder, Colorado.

Matthew Salganik: The Open Review of Bit by Bit, Part 3—Increased access to knowledge


This is the third post in a three part series about the Open Review of Bit by Bit: Social Research in the Digital Age. This post describes how Open Review led to increased access to knowledge. In particular, I’ll provide information about the general readership patterns, and I’ll specifically focus on readership of the versions of the manuscript that were machine translated into more than 100 languages. The other posts in this series describe how Open Review led to a better book and higher sales.


During the Open Review period, people from all over the world were able to read Bit by Bit before it was even published. The map at the top of the page shows the locations of readers around the world.

In total, we had 23,514 sessions and 79,426 page views from 15,650 users. Also, unlike annotations, which decreased over time, there was a relatively constant level of traffic, averaging about 500 sessions per week.


How does these sessions begin? The most common channels were direct navigation followed by organic search. Only about 20% of the traffic came from referrals (following links) and social.


What devices were people using? About 30% of sessions were on mobile phones. Therefore, responsive design is important to ensure access.  


In fact, mobile was more common for users from developing countries. For example, in the US, there were about 6 desktop sessions for every 1 mobile session. In India, however, there were about 3.5 mobile sessions for every desktop session. Also, there were more mobile sessions from India than mobile sessions from US.  Here are the top 10 country-platform combinations.


Machine Translations

In addition to posting the book in English, we also machine translated the book into more than 100 languages using Google Translate. Of course, Google Translate is not perfect, but reading a bad translation might be better than no translation at all. And because Google Translate is getting better quickly, a few years from now machine translation might be a viable approach for many languages.

So, did these machine translations get used? No and yes. In terms of page views, no other single language had more than 2%. So, this seems to argue against the value of machine translation. On the other hand, if you add up all the page views in languages other than English it becomes a sizable number. The non-English page lead to a 20% increase in page views (65,428 English to 79,426 Total).


If you are considering Open Review of your manuscript, you might be wondering if machine translation was worth it. There were two main costs: adjusting the website to handle multiple languages and the money we had to pay Google for the translations. Now that we’ve open sourced our code, you won’t need to work about the fixed cost related to website design. But, we did pay approximately $3000 USD to Google for translations in August 2016 (I expect that the cost of machine translation will come down). In terms of benefits, they are not really clear. I don’t know if people actually learned anything from these machine translations, and I don’t think they did much to support the other goals of the Open Review: better books and higher sales.  But, it did certainly capture people’s attention when I said that the book was available in 100 languages, and it showed a commitment to access. Future authors and publishers will have to decide what makes sense in their case, but as machine translation continues to improve, I’m optimistic that multiple languages will be part of the Open Review process in some way in the future.

This post is the third post in a three part series about the Open Review of Bit by Bit: Social Research in the Digital Age. The other posts in this series describe how Open Review led to a better book and higher sales.

You can put your own manuscript through Open Review using the Open Review Toolkit, either by downloading the open-source code or hiring one of the preferred partners. The Open Review Toolkit is supported by a grant from the Alfred P. Sloan Foundation.

Matthew J. Salganik is professor of sociology at Princeton University, where he is also affiliated with the Center for Information Technology Policy and the Center for Statistics and Machine Learning. His research has been funded by Microsoft, Facebook, and Google, and has been featured on NPR and in such publications as the New Yorker, the New York Times, and the Wall Street Journal.

Bird Fact Friday– the American robin, a wood thrush & their song

Adapted from pages 2-4 of Listening to a Continent Sing:

Use this QR code to hear the American robin’s song.

A robin begins to sing, 5:34 a.m., about half an hour before sunrise. His low, sweet carols drop from above one by one, cheerily, cheer- up, cheerio, cheerily. He accelerates now, adding a single high screechy note, a hisselly, after each caroled series, but soon there will be two or more such high, exclamatory notes. He combines sequences of different caroled and hisselly notes to express all that is on his mind, sometimes even singing the two contrasting notes simultaneously with a low carol from his left voice box and a high hisselly from his right, but for now the effort of deep listening is too much like work. 

A wood thrush joins in. He awakes with sharp whit whit calls, as if a bit peeved, then gradually calms to softer bup bup notes, and soon he’s in full song. Emerging are five different half- second masterpieces of rising and falling, rich, pure notes. And the flourishes— what a pity that I cannot slow them down now and hear the pure magic in the way the thrush must hear it, with his precision breathing  through his two voice boxes producing the most extraordinary harmonies imaginable.

Use this QR code to listen to the wood thrush’s song.

The robin and thrush now travel back in time together in search of their roots, meeting up with me some hundreds of millions of years ago, when we all had the same ancestor, when we were one. We belong to an extended family, each of us an extraordinary success story, each of us with an unbroken string of successful ancestors dating back to the beginning of time. The robin, the thrush, and I are equals: “Mitakuye oyasin,” the Sioux would say as they end a prayer, “all my relations.”

The robin, the wood thrush . . . Yes, I know why I’m here. Disjointed thoughts surface with jumbled words that do no justice to the certainty of purpose . . . to celebrate life, and the lives of other creatures along the way . . . to hear this continent sing, not only the birds but also the people, flowers and trees, rocks and rivers, mountains and prairies, clouds and sky, all that is . . . to discover America all over again, from the seat of a bicycle . . .to embrace reality, leaving behind the insanity of a workplace gone amuck . . . to simply be, to strip life to its bare essentials and discover what emerges . . . and in the process, perhaps find my future . . . by listening to birds!

KroodsmaListening to a Continent Sing
Birdsong by Bicycle from the Atlantic to the Pacific
By Donald Kroodsma

Join birdsong expert Donald Kroodsma on a ten-week, ten-state bicycle journey as he travels with his son from the Atlantic to the Pacific, lingering and listening to our continent sing as no one has before. On remote country roads, over terrain vast and spectacular, from dawn to dusk and sometimes through the night, you will gain a deep appreciation for the natural symphony of birdsong many of us take for granted. Come along and marvel at how expressive these creatures are as Kroodsma leads you west across nearly five thousand miles—at a leisurely pace that enables a deep listen.

Listening to a Continent Sing is also a guided tour through the history of a young nation and the geology of an ancient landscape, and an invitation to set aside the bustle of everyday life to follow one’s dreams. It is a celebration of flowers and trees, rocks and rivers, mountains and prairies, clouds and sky, headwinds and calm, and of local voices and the people you will meet along the way. It is also the story of a father and son deepening their bond as they travel the slow road together from coast to coast.

Beautifully illustrated throughout with drawings of birds and scenes and featuring QR codes that link to audio birdsong, this poignant and insightful book takes you on a travel adventure unlike any other—accompanied on every leg of your journey by birdsong.


Christie Henry on the Ecosystem of University Presses


Adapted from a presentation given at UGA by Christie Henry, Director, Princeton University Press

I have had the incredible fortune of living in the university press ecosystem for several decades, having moved in the fall of ‘17 to Princeton University Press, after twenty-four years with inspiring colleagues at the University of Chicago Press. University presses and the universities with which we partner are part of what I would describe as a metacommunity of ideas and knowledge—that is, a set of interacting communities linked by the dispersal of multiple, potentially interacting species.

Publishers do like to interact with species of students and academics; in fact we depend on these interactions. And it’s quite well known that each of our ecosystems draws resilience and sustainability from one another; most often our relationships are mutualisms.

As within ecosystems, there are vital nutrients that flow through our systems, among the most important of which is knowledge. Universities are the deep-sea thermal vents of knowledge, pumping it out in amazing quantities at highly concentrated sites. And university presses help create a pelagic zone for this knowledge, putting it into circulation across the globe.

Like organic nutrients, knowledge is created, consumed, processed, recycled. And we must be aware of its potential to get stuck in dead zones, or in massive clumps of plastic debris. As a vital nutrient, knowledge is also essential for us to conserve, ideally to grow.

Currently our ecosystems are facing unprecedented climate change—we can consider it our own Anthropocene. How we define “anthro” in this case varies. But we certainly don’t want to be having conversations years from now about how to clone an extinct idea or population of knowledge, much as we are now having conversations about cloning mammoths and other extinct fauna.

Strategic plans for conservation depend on an understanding of threats and challenges, and especially the climate disrupters. Those inhabiting our ecosystems will find this overview familiar terrain, I suspect, but I think it’s important to trace the contours of our current stressed landscape.

The worlds of research and knowledge are experiencing fluctuations in funding that are as erratic as global temperatures, though not trending on an increase as global temperatures are. Just as increased snowfall doesn’t negate the reality of global warming, we know that increases in the population in higher education don’t mean our system is showing signs of health and well-being. Reductions in funding, and university budgets, have run like a rhizome through our communities, have disrupted library budgets, and in the university press world have resulted in events such as the recent University Press of Kentucky battle for survival under proposed state government cuts.

We have seen massive influxes of what I could call invasive species—those that disrupt or harm our systems, the economy, and even human health. Email, many say, is one of these species. So is fake news. So too is the volume of information, which is impacting attention span, and certainly causing some concern among book publishers of all species.  Some of these influxes are leading to an extinction of time, and this has a ripple effect, with impacts on critical system operations like peer review. And even if altruism has been recognized in dolphins and scrub jays, we know there are limits. There is less time for writing, and for reading. Though some positive trends outside of the academy point to growth of reading time, it’s not necessarily time spent with books, or with long-form writing.

There are also arguably more predatory species in our communities, from rapacious journals to those attempting to extract nutrients from our systems: the tyrannical form of the assault on higher ed. And some of these predators are known to live in the Amazon, but this verdant jungle is also important to visit from time to time for all that it harbors.

We know that species diversity drives ecosystem health and stability, and another threat is the lack of diversity in our ecosystems. We are at risk of genetic bottlenecks, those major events that decrease diversity and the gene pool—immigration legislation is among the most acute recent examples.

There are pressures to grow the reach of our ecosystems, our nutrient output, while at the same time reducing incoming nutrients. Open access expectations in the book world pose one of these pressures for university presses. So does the tenure and credentialing process in those disciplines that quantify book output as a key metric.

Okay, enough of the gloom and doom. Many historical moments of massive disruption are followed by a burst of evolutionary adaptations that lead to greater diversity. And I think there is a chance we are now in our own Cambrian Explosion, amidst great radiations of knowledge and books. We will need to be intentional about supporting and preserving these ecosystems.

A recent article in the Chicago Tribunewas titled “University Presses Deserve Protection,” much as ecosystems around the world need conservation and management.

Another recent publication from the science literature shifted the foci of biodiversity from mass of species to the diversity of functional traits of species in an ecosystem as a measure of resilience. This study focused on pufferfish, and one could argue we have some of these swimming in our collective waters. But universities are growing innumerable new functional traits, as are university presses. I’d argue we in the AUP world were preadapted to this need for an array of functional traits, as our lists of book species are diverse—we publish course books, textbooks, popular books, reference works, regional works, and monographs. And we as a community function much like a honeybee democracy, which in the face of threats takes the form of an incredible superorganism—without needing to sting.

New modes of communication have also increased outlets for knowledge sharing, and we just need to learn the best ways to research and curate these. Blogs have become a flagship species in our ecosystems, inspiring books, and have provided new platforms. There was a great article in Natureyesterday about the first science conference proceedings published in graphic form, a genre we all know could benefit from evolutionary change.

Libraries and publishers are working to coevolve, crafting aggregations of content, and partnering on joint publications and initiatives.

Some evolution is at a slower pace, in the best of ways. The price of university press books in real dollars, accounting for inflation, has not increased in measurable ways at all. The nonprofit mission and ethos have been in a state of equilibrium, only rarely punctuated.

Technology is leading not just to artificial intelligence, but to new and real knowledge. Open peer review is using technology to bring in a wider range of reviewers, particularly more global ones. A recent great example is Bit by Bit: Social Science Research in the Digital Age:author and sociologist Matt Salganik worked with the Sloan Foundation to create the Open Review Toolkit. This platform facilitated feedback from around the world, at various scales, and generated a database of interested readers.

Technology has also helped to grow our landscapes, to aid in bringing our content to readers the world over on new platforms. New digital initiatives, from digital humanities, sciences, and social sciences, are animating scholarship, and the book.

And publishers are also focusing on the diversity of species—of readers, of authors, of reviewers—and that will ultimately drive our resilience, as it will the university’s ecosystem.

There are many compelling reasons to be part of the circulation and exchange between our linked metacommunities.

As I think about a field guide for those of you coming new to the AUP land, there are a number of entries in the field guide index I would point you to:

  1. Find your niche. Know your audience, especially the difference between a dissertation committee and a book readership.
  2. Look for conspecifics. Identify those species of books that are like yours, as there is strength in being part of a family. And then see where those species tend to gather, under which imprints.
  3. Think about your plumage. This includes your proposal, a vital signaling tool, but also your platform. What type of author species are you? What are the novel traits you contribute to the ecosystem? We look for functional diversity on our lists. But we are increasingly looking for how well your plumage works in the world—what we call your platform. Social media, while causing a lot of information overflow, has also become a vital signaling tool in the world of publishing—for scholarly and trade alike. Many of the signaling forms of earlier geologic eras, like print advertising, are not resonating—they are being replaced with Altmetric badges and Twitter followers, and these new efforts depend on partnerships between presses and authors.
  4. Think like bowerbird. Look for the houses that are constructed and decorated in ways that sing to you. Each publisher has its own niche, and we usually do a pretty good job of signaling that ourselves. Visit websites; visit booths in exhibit halls. And your journey should explore not just the construct of our houses, but how we get our birdsong out into the world—are we visible? are our prices reasonable? do we appear on syllabi? are our books translated widely?
  5. Sensory ecology is a wonderfully exciting field. Embrace the ways in which you can adapt this to publishing. Listen to your peers; listen to yourselves as you teach, and the books you use. Listen for the authors and books that are being mentioned in your own niche.
  6. Circulate like plankton. Find ways to share your ideas. If at conferences, be sure to test them out with publishers on-site. Though also be mindful of the conservation of energy rule for publishers—try to make sure the engagement is focused and meaningful.
  7. Be active foragers—do your research. There is so much information on press websites about their own DNA. Their priorities, strengths, weaknesses. The more you can align your approach to these strengths, the better.
  8. Be clear signaler, not stealth like anglerfish. Communicate with publishers with clarity and transparency, from the proposal to the project’s main hook, to your aspirations as an author, to the way to engage your readers with story.
  9. Prepare to be challenged by your conspecifics and your competitors. Peer review is critical by nature, but it also evolves stronger life-forms of books.
  10. Be a patient species—we know the book world sometimes seems to move at geologic time scales, but the results can be structures as magnificent and multilayered as the Grand Canyon.
  11. You may also occasionally need the tenacity of a bulldog.
  12. And nothing ignites the senses better than reading or listening to books—please make time to do so. It’s the best way to find models for different forms of writing, and to support the ecosystem with which you are now coevolving as academics.

Another reference to a recent article in Nature:

“Ecological theory suggests that large-scale patterns such as community stability can be influenced by changes in interspecific interactions that arise from the behavioral and/or physiological responses of individual species varying over time.“ Please be those individual species that respond and behave in ways that will stabilize knowledge, and so too the evolution of the book.


Matthew Salganik: The Open Review of Bit by Bit, Part 2—Higher sales

This post is the second in a three part series about the Open Review of Bit by Bit: Social Research in the Digital Age. This post describes how Open Review led to higher sales. The other posts in this series describe how Open Review led to a better book and increased access to knowledge.

Before talking about sales in more detail, I think I should start by acknowledging that it is a bit unusual for authors to talk about this stuff. But sales are an important part of the Open Review process because of one simple and inescapable fact: publishers need revenue. My editor is amazing, and she’s spent a lot of time making Bit by Bit better, as have her colleagues that do production and design. These people need to be paid salaries, and those salaries have come from somewhere. If you want to work with a publisher—even a non-profit publisher—then you have to be sensitive to the fact that they need revenue to be sustainable. Fortunately, in addition to better books and increased access to knowledge, Open Review also helps sell books. So for the rest of this post, I’m going to provide a purely economic assessment of the Open Review process.

One of the first questions that some people ask about Open Review is: “Aren’t you giving your book away for free?”  And the answer is definitely no. Open Review is free like Google is free.

Notice that Google makes a lot of money without ever charging you anything. That’s because you are giving Google something valuable, your data and your attention. Then, Google monetizes what you provide them. Open Review is the same.

In addition to improving the manuscript, which should lead to more sales, there are three main that Open Review increases sales: collecting email addresses, providing market intelligence, and promoting course adoptions.

Email addresses

After discussions with my editor, we decided that the main business metric during the Open Review of Bit by Bit was collecting email addresses of people who wanted to be notified when the book was complete. These addresses are valuable to the publisher because they can form the basis of a successful launch for the book. 

How did we collect email address?  Simple, we just asked people like this:


During the Open Review process we collected 340 unique valid emails address. Aside from a spike at the beginning, these arrive at a pace of about 1 per day with no sign of slowing down.


Who are these people? One quick way to summarize it is to look at the email ending (.com, .edu, .jp, etc). Based on this data, it seems that that Open Review helped us collect email address from people all over the world.


Another way to summarize the types of people who provided their email address is to look at the email suffixes (everything that comes after @). This shows, for example, which schools and companies are most represented.

Just collecting 340 email addresses was enough to significantly increase sales of Bit by Bit. And, in future Open Review projects, authors and publishers can get better at collecting email addresses. Just as Amazon is constantly running experiments to get you to buy more stuff, and the New York Times is running experiments to get you to click on more headlines, we were running experiments to collect more addresses. And unlike the experiments by Amazon and the New York Times, our experiments were overseen by Princeton’s Human Subjects Institutional Research Board.  

We tried six different ways to collect email addresses, and then we let Google Analytics use a multi-armed bandit approach find the best one. Here’s how they compared:


These differences are not huge, but they illustrate that Open Review websites can use the same kind of conversation optimization techniques that are common on modern, commercial websites. And I’m confident that future Open Review projects could be have an even higher rate of email sign-ups with additional design improvements and experimentation.

Market intelligence

In addition to collecting email addresses, the Open Review process also provides market intelligence that helped tailor the marketing of the book. For example, using a tool called Google Webmaster you can see which parts of your book are being linked to:


From this information, we learned that in addition to the book itself, people were most interested in the Open Review process and the chapter on Ethics. Then, when we were developing marketing copy for the book, we tried to emphasize this chapter.

Using Google Webmaster, you can also see which search terms are leading people to your book. In my case, you will see that 9 of the top 10 terms are not in English (in fact 48 of the top 50 terms are not in English). This is because of the machine translation process, which I talk about more in the post on increased access to knowledge. I was hoping that we would receive more organic search traffic in English, but as learned during this project: it is very hard to show up in the top 10 in organic search for most keywords.


In case you are curious, গবেষণা নকশা means “research design” in Bengali (Bangla).  

A final way that this market intelligence was helpful was in selling foreign rights to the book. For example, I provide this map of global traffic to representatives from Princeton University Press before they went to the London Book Fair to sell the foreign rights to Bit by Bit. This traffic shows in a very concrete way that there was an interest in the book outside of the United States.




Course adoptions

Finally, in addition to email addresses to help launch the book and market intelligence, Open Review accelerates course adoptions. My understanding is there is typically a slow ramp-up in course adoptions over the period of several years. But that slow ramp-up would be problematic for my book, which is freshest right when published and will gradually go stale over time. Given that the lifespan for this edition is limited, early course adoptions are key, and Open Review helped with that. I know of about 10 courses (list here) that have adopted the book in whole or in part during the Open Review process. This helped prime the pump for course adoptions when the book went on sale.

In this post, I’ve tried to describe the business case for Open Review, and I’ve shown how Open Review can help with collecting email addresses, gathering market intelligence, and speeding course adoptions. I think that purely on economic terms Open Review makes sense for publishers and authors for some books. If more people explore and develop Open Review as a model, I expect that these economic benefits would increase.  Further, this simply economic analysis does not count the benefits that come from better books and increased access to knowledge, two things that both authors and publishers value.

This post is the second in a three part series about the Open Review of Bit by Bit. You can also read more about how the Open Review of Bit by Bit led to a better book and increased access to knowledge. And, you can put your own manuscript through Open Review using the Open Review Toolkit, either by downloading the open-source code or hiring one of the preferred partners. The Open Review Toolkit is supported by a grant from the Alfred P. Sloan Foundation.

Matthew J. Salganik is professor of sociology at Princeton University, where he is also affiliated with the Center for Information Technology Policy and the Center for Statistics and Machine Learning. His research has been funded by Microsoft, Facebook, and Google, and has been featured on NPR and in such publications as the New Yorker, the New York Times, and the Wall Street Journal.