Essential Reading in Natural History

Princeton University Press is excited to have a wide variety of excellent titles in natural history. From the Pacific Ocean, to horses, to moths, our books cover a range of topics both large and small. As summer winds down, take advantage of the last weeks of warm weather by bringing one of our handy guides out into the field to see if you can spot a rare butterfly or spider. To find your next read, check out this list of some of our favorite titles in natural history, and be sure to visit our website for further reading.

Britain’s Mammals by Dominic Couzens, Andy Swash, Robert Still, and Jon Dun is a comprehensive and beautifully designed photographic field guide to all the mammals recorded in the wild in Britain and Ireland in recent times.


Horses of the World by Élise Rousseau, with illustrations by Yann Le Bris, is a beautifully illustrated and detailed guide to the world’s horses.


A Swift Guide to the Butterflies of North America, Second Edition, by Jeffrey Glassberg is a thoroughly revised edition of the most comprehensive and authoritative photographic field guide to North American butterflies.


Big Pacific by Rebecca Tansley is the companion book to PBS’s five-part mini series that breaks the boundaries between land and sea to present the Pacific Ocean and its inhabitants as you have never seen them before.


Britain’s Spiders by Lawrence Bee, Geoff Oxford, and Helen Smith is a photographic guide to all 37 of the British families.


The second edition of Garden Insects of North America by Whitney Cranshaw and David Shetlar is a revised and updated edition of the most comprehensive guide to common insects, mites, and other “bugs” found in the backyards and gardens of the United States and Canada.


Last but not least, Mariposas Nocturnas is a stunning portrait of the nocturnal moths of Central and South America by famed American photographer Emmet Gowin.


Anurag Agrawal: Needing and eating the milkweed

AgrawalU.S. agriculture is based on ideas that make me scratch my head. We typically grow plants that are not native to North America, we grow them as annuals, and we usually only care about one product from the crop, like the tomatoes that give us ketchup and pizza.

And we don’t like weeds. Why would we? They take resources away from our crops, reduce yields more than insect pests or disease, they’re hard to get rid of, and they might give you a rash. But there are few plants more useful, easy to cultivate, and environmentally friendly than the milkweed. The milkweed takes its ill name from the sticky rubbery latex that oozes out when you break the leaves, it’s the monarch butterflies only food, and it is a native meadow plant. Milkweed has sometimes received a bad rep, and perhaps for good reason; they can be poisonous to livestock, they are hard to get rid of, and they do reduce crop yields. But what about milkweed as a crop?

AgrawalThomas Edison showed that milkweed’s milky latex could be used to make rubber. The oil pressed from the seed has industrial applications as a lubricant, and even value in the kitchen and as a skin balm. And as a specialty item, acclaimed for its hypoallergenic fibers, milkweed’s seed fluff that carries milkweed seeds in the wind, is being used to stuff pillows and blankets. Perhaps more surprising, the same fluff is highly absorbent of oils, and is now being sold in kits to clean up oil tanker spills. The fibers from milkweed stems make excellent rope and were used by Native Americans for centuries. More than two hundred years ago, the French were using American milkweed fibers Agrawalto make beautiful cloths, said to be more radiant and velvety than fine silk. And chemically, milkweeds were used medicinally by Native Americans since the dawn of civilization, with a potential for use in modern medicine.  This is a diverse plant with a lot to offer.  Why wouldn’t we cultivate this plant, not only for its stem fibers, seed oils, pillowy fluff, rubbery latex, and medicines, but also in support of the dwindling populations of monarch butterflies?

Ever since the four lowest years of monarch butterfly populations between 2012 and 2015, planting milkweeds for monarchs has been on the tips of a lot of tongues. For most insects that eat plants, however, their populations are not limited by the availability of leaves.  Instead, their predators typically keep them in check, or as in the case of monarchs, there may be constraints Agrawalduring other parts of their annual cycle. Monarchs travel through vast expanses from Mexico to Canada, tasting their way as they go. They tolerate poisons in the milkweed plant; indeed, they are dependent on milkweed as their only food source as a caterpillar. Nearly all mating, egg-laying, and milkweed-eating occurs in the United States and Canada. And each autumn monarchs travel to Mexico, some 3,000 miles, fueled only by water and flower nectar.

All parts of the monarch’s unfathomable annual migratory cycle should be observed and studied. My own research has suggested that habitat destruction in the U.S., lack of flower resources, and logging at the overwintering sites in central Mexico are all contributing to the decline of monarch butterflies. Lack of milkweed does not seem to be causing the decline of monarchs. Nonetheless, planting native milkweeds can only help the cause of conserving monarch butterflies, but it is not the only answer. And of course we humans need our corn and soy, and we love our broccoli and strawberries, so is cultivating milkweed really something to consider?

We humans, with our highly sensitive pallets, do the one thing that monarch butterflies don’t do. We cook. And the invention of cooking foods has been deemed one of the greatest advances in human evolution. Cooking certainly reduces the time spent chewing and digesting, and perhaps more importantly, cooking opens up much of the botanical world for human consumption, because heat can break down plant poisons.

AgrawalEuell Gibbons, the famed proponent of wild plant edibles in the 1970s, was a huge advocate of eating milkweed. The shoots of new stems of the eastern “common milkweed” are my personal favorite. I simply pull them up when they are about 6-8 inches tall and eat them like asparagus. Gibbons recommended pouring boiling water over the vegetables in a pot, then heating only to regain the boil, and pouring off the water before sautéing. You can pick several times and the shoots keep coming. With some preparation, the other parts of the milkweed plant can be eaten too, and enjoyed like spinach, broccoli, and okra.

At the end of summer, many insects have enjoyed the benefits of eating milkweed, especially the monarch butterfly. Any boost we could give to the monarch population may help use preserve it in perpetuity. But the real value in cultivating milkweed as a crop is that it has a lot to offer, from medicines to fibers to oils. It is native and perennial, and can be grown locally and abundantly.  Let’s give this weed a chance.

Anurag Agrawal is a professor in the Department of Ecology and Evolutionary Biology and the Department of Entomology at Cornell University. He is the author of Monarchs and Milkweed: A Migrating Butterfly, a Poisonous Plant, and Their Remarkable Story of Coevolution.


Rebecca Tansley & Craig Meade: The Pacific Ocean as you’ve never seen it before

The Pacific Ocean covers one-third of Earth’s surface—more than all of the planet’s landmasses combined. It contains half of the world’s water, hides its deepest places, and is home to some of the most dazzling creatures known to science. The companion book to the spectacular five-part series on PBS produced by Natural History New Zealand, Big Pacific breaks the boundaries between land and sea to present the Pacific Ocean and its inhabitants as you have never seen them before. Providing an unparalleled look at a diverse range of species, locations, and natural phenomena, Big Pacific is truly an epic excursion to one of the world’s last great frontiers. In our latest Q&A, author Rebecca Tansley and showrunner Craig Meade ask each other questions about the series, the book, and the majestic Pacific Ocean:

Questions from Rebecca to Craig

There have been a lot of documentaries made about the oceans and the animals that live in them. How did the Big Pacific idea come about and what new perspectives did you think this series could bring?
It started ten years ago in a late night conversation in France with some of Japan’s best wildlife filmmakers.  We realized that after a thousand years of humanity dominated by the Atlantic and its people that the next thousand years would probably be owned by the Pacific. We conjectured that if we inverted the paradigm and considered the Pacific Ocean a continent, it would already hold many of the world’s major cities: Seattle, LA, Tokyo, Shanghai, Sydney, Taipei.  So what are the natural values of this new continent, what does it say to us, and what does it mean to us? What are its emotional messages? Let’s put a flag in it, explore it and see what we discover about it. So that night we started looking for the defining stories that we should tell of the Pacific Ocean.

The book sections match the episodes of the Big Pacific show – Passionate, Voracious, Mysterious, Violent. How did you come up with these themes and decide to structure the series around them?

To matter, stories must move us, trill our emotional strings. Usually these kind of words are embedded in the undercurrent of the script. Hinted at. But the Pacific is big and bold and we thought our statements about it should be so too. It’s all those things: passionate, voracious, violent and mysterious, but it’s also many other things. So I don’t believe this journey to capture its multitude of faces is yet over. Please let me do the Ecstatic, Selfish and Uncertain shows one day as well!

I talked to crew members about some of the special moments in the series’ production, but which is the most special Big Pacific moment for you, on screen?

The Yellow eyed penguins in the Passionate episode. Less than 4000 adults remain. They are a species that may have just a decade or two left and the cinematographer captured their cold and lonely existence beautifully. It’s not a story of sorrow but one of the bird’s passionate relationship with its mate and family. Like a black and white waddling hobbit he comes home from work and wanders through the mossy forest to the cave they all share. It’s an idyllic glimpse of natural New Zealand and a rare and wonderful animal few people are ever going to see. If they disappear for good from the wild I’ve no doubt this story is the one they’ll play to teach kids what a Yellow eyed penguin once was like.

The Big Pacific series is highly entertaining but also packed with fascinating information – I learned a lot writing the book! In a world of increasing pressure on our natural environment, what is the role of natural history storytelling?

I think it’s increasingly important we do not sugar-coat the truth. We mustn’t be the blind purveyors of a dream while a nightmare plays out in the natural world. So as filmmakers there’s always a tension in what we do. I actually want to bring you a dream so you know why we must protect what we have left in the wild world – but I mustn’t let that dream lie to you and hypnotize you into believing the dream is entirely real. Because in some cases the dream is already over. Like the Yellow eyed penguin story I mentioned, I find myself handling a story as though I am preserving something already lost; instead of revealing something new I find myself working to faithfully capture the essence of what was.

Questions for Rebecca from Craig

The Pacific Ocean is many things to many people: a place, a home, a source of food, a gulf between land masses. How did writing the Big Pacific book change your sense of what the Pacific is to us?

I grew up with the Pacific literally at my front door and I’ve never been far from it for my entire life. It’s been my playground, my pastime and my place of solace. Because of this, for me as well as millions of other people like me, it’s hard to define just what the Pacific means – it just infuses our lives. This is one of the many reasons I was attracted to this project, because of the way it focuses not just on the Pacific’s natural history but on people’s relationship with it too. I hope that comes through in the book, because you can’t separate the animals or the people from the ocean they live in and around. We are, actually, in many ways defined by our place in or on the Pacific. Writing the book reinforced this view and gave me an opportunity to express it.

There are so many evocative images in the Big Pacific book, is there one that you keep on returning to?One animal that you want to meet?

Oh that’s a tough one, because I’m in love with so many of the animals and the images! I’ve always had a strong interest in whales so I find the images of the rare Blue whale captured by Big Pacific Director of Photography, the late and obviously very talented Bob Cranston, mesmerizing. But in the course of writing the book I discovered many other wonderful members of the Pacific community. Among them are the Wolf eels, whose dedication to their partner and to their brood is totally endearing. I love the images of the Firefly squid because they seem so ethereal and their lives are so fleeting, yet nature has nonetheless equipped them miraculously for their short, spectacular journey. Plus I can’t not mention the Chinese horseshoe crab, because they are such admirable survivors. I hope the whole world wakes up to the beauty and value of all the animals that live in and around not just the Pacific but all the planet’s oceans, and recognizes that they deserve their place in it for the future as much as we do.

Natural history stories at their heart are science stories – but with fur and scales. To be enjoyable and understandable they usually require simplification, but still need to be highly accurate. That sounds like a complicated dance to perform when writing, was it?

I’m a storyteller, not a scientist, but like a scientist I’m curious about the world. The process I used for Big Pacific worked well. First I read the (draft) series scripts and watched the Big Pacific footage. This meant I became intrigued with the animals first and foremost as characters, and was drawn into other aspects of the Pacific’s natural history – such as the Silver Dragon and the Ring of Fire – as stories. When I set about writing I drew on the science that was provided to me by Big Pacific researcher Nigel Dunstone. Then it was a matter of asking myself, what do I find interesting about that animal or story that others might also enjoy? What might people not know? What is dramatic about this story? Of course I also ensured I was covering off important information, such as environmental threats and conservation status, and everything I wrote was checked afterwards by Nigel and the Big Pacific team.

You’ve made some fantastic films between your writing jobs, is it hard to transition from the spoken word to the written?  Are they two different crafts?

Writing and filmmaking are related in terms of both entertaining and organizing information for an intended audience, but they do that in different ways and to a large extent employ different skill-sets. Obviously filmmaking is a collective pursuit that usually requires a team of people, whereas writing is a solitary craft. I enjoy both equally and writing/directing my own films enables me to do this. I was fortunate enough to spend time with the Big Pacific team when I selected the images for the book, and also interviewed others, so in this writing project I did get to collaborate. I would add that when I write I’m very conscious of rhythm – an aspect that’s also important to aspects of filmmaking, such as narration and editing. I’m not really musical, but I like to think that I have that sense of linguistic rhythm and flow. Perhaps that’s why I studied languages for many years!

TansleyA documentary filmmaker herself, Rebecca Tansley has previously worked at the production company that made the Big Pacific series, NHNZ. In addition to writing and directing films she has written two other internationally published books and been a contributor to national magazines and newspapers in her home country of New Zealand. Rebecca has degrees in languages, media production and law.

Craig Meade and the production team at NHNZ are some of the most successful and prolific producers of natural history programs on the planet—more than 50 wildlife shows completed in just the last four years. But after 30 years of writing and directing Craig still doesn’t class himself as a wildlife filmmaker—he’s a science guy that prefers mud, tents and mosquitoes to laboratories. When he’s not making films Craig is a deer hunter and an on-call fire fighter.

Dominic Couzens: The extraordinary (and overlooked) water shrew

water shrewAsk most people whether they have heard of a water shrew and they’ll shake their head. If you tell them that there are 1.9 million water shrews in Britain and that they have a poisonous bite, then those same people are likely to raise their eyebrows, amazed they have never heard of it. The water shrew (not a water vole or a “water rat”) manages to keep a remarkably low profile for the extraordinary creature that it is.

Shrews are the mammals that look superficially like mice—they are small, brown and furry—yet are quite unrelated to them. They are flatter-bodied than mice and don’t hop, and have long snouts that move around in a somewhat robotic, mechanical fashion as they seek food. With small eyes (they are related to the almost-blind moles) and small ears, shrews lack the features that give mice and voles an easy identity to humankind. Shrews don’t live indoors or steal our food, either; they subsist on a diet of insects and other small living things. So shrews aren’t exactly on our doorsteps, asking to be noticed.

But shrews cross our paths alright, even if we aren’t looking. They are among the most abundant of all our mammals. Aside from the water shrew, there are 42 million common shrews and 8.6 million pygmy shrews in Britain; a veritable army of voracious insect- and worm-guzzlers living at our feet. They prefer to live in long grass, dense shrubbery, and other places where it’s easy to hide.

And, of course, they choose the waterside, too. The water shrew, the largest and best-turned out of our three common species, with its smart white underside contrasting with business-suit-black above, is the most aquatic of the three. Although it is perfectly at home in undergrowth away from water, its signature hunting method is to immerse in still or slow-flowing water, diving down to depths of 2m or more for up to 30 seconds, to snap up crustaceans, insect larvae, snails, worms, and small vertebrates such as newts, frogs, and fish. It is the only British mammal adapted to tap into this underwater niche of small freshwater life.

As it happens, the water shrew can also tackle prey larger than itself, by means of its remarkable venomous saliva, which immobilizes frogs or fish. The venom is a neurotoxin, causing paralysis and disorders of the blood and respiratory system. It is toxic enough to be a very unpleasant skin irritatant in humans that may take days to subside.

The water shrew has several adaptations to its preferred aquatic lifestyle. The surface of each foot is fringed with stiff hairs, increasing the area of the limb, like a flipper, allowing this mite to swim efficiently. The tail also has stiff hairs on the underside, making it act like a rudder, for steering. The hairs on the body also trap a layer of air, keeping the shrew warm underwater, even in the middle of winter.

Shrews, although small, don’t hibernate. Instead they must remain active throughout the winter, requiring a meal at least every two hours, day and night. It isn’t easy to sustain, and many shrews don’t survive. In fact, almost every adult dies after a single breeding season, meaning that only the juveniles born during the spring and summer survive to the next season—just another extraordinary aspect of this overlooked animal’s life.

Dominic Couzens is one of Britain’s best-known wildlife writers. His work appears in numerous magazines, including BBC Wildlife and BBC Countryfile, and his books include Secret Lives of Garden Wildlife and Britain’s Mammals: A Field Guide to the Mammals of Britain and Ireland.

Celebration of Science: A reading list

This Earth Day 2017, Princeton University Press is celebrating science in all its forms. From ecology to psychology, astronomy to earth sciences, we are proud to publish books at the highest standards of scholarship, bringing the best work of scientists to a global audience. We all benefit when scientists are given the space to conduct their research and push the boundaries of the human store of knowledge further. Read on for a list of essential reading from some of the esteemed scientists who have published with Princeton University Press.

The Usefulness of Useless Knowledge
Abraham Flexner and Robbert Dijkgraaf


The Serengeti Rules
Sean B. Carroll


Honeybee Democracy
Thomas D. Seeley


Silent Sparks
Sara Lewis


Where the River Flows
Sean W. Fleming


How to Clone a Mammoth
Beth Shapiro


The Future of the Brain
Gary Marcus & Jeremy Freeman


Searching for the Oldest Stars
Anna Frebel


Climate Shock
Gernot Wagner & Martin L. Weitzman


Welcome to the Universe
Neil DeGrasse Tyson, Michael A. Strauss, and J. Richard Gott


The New Ecology
Oswald J. Schmitz


Sean W. Fleming on Where the River Flows

Rivers are essential to civilization and even life itself, yet how many of us truly understand how they work? Why do rivers run where they do? Where do their waters actually come from? How can the same river flood one year and then dry up the next? Where the River Flows by Sean W. Fleming is a majestic journey along the planet’s waterways, providing a scientist’s reflections on the vital interconnections that rivers share with the land, the sky, and us. Fleming recently took the time to answer some questions about his new book.

Your book is unique in that it explores the geophysics of rivers: where their waters come from, why their flows vary from day to day and decade to decade, and how math and physics reveal the hidden dynamics of rivers. Why is this important?

SF: Every aspect of our lives ultimately revolves around fresh water. It’s needed to grow food and brew beer, to build cars and computers, to generate hydroelectric power, to go fishing and canoeing, to maintain the ecological web that sustains the world. Floods are the most expensive type of natural disaster in the U.S., and droughts are the most damaging disasters globally. Yet as the margin between water supply and demand grows narrower, and tens of millions more people congregate in megacities often located on floodplains, we become more vulnerable to the geophysical subtleties of the global water cycle. It’s an important part of life that we need to understand if we’re going to make smart choices going forward.

Your book anthropomorphizes a lot. Is this just a way to make the subjects more accessible, or is there a little more to it?

SF: I ask questions like “how do rivers remember?” and “how do clouds talk to fish?” and “can rivers choose where they flow?” It’s a fun way to broach complicated topics about the geophysics of rivers. But posing questions like that also prepares us to open our minds to new ways of thinking about rivers. For instance, modern information theory allows us to quantitatively describe the coupled atmospheric-hydrologic-ecological system as a communications pathway, in which the weather literally transmits data to fish species using the watershed as a communications channel—modulating water levels almost like Morse code. There may be no intent in that communication, but mathematically, we can treat it the same way.

What are the main threats that rivers face? Are these challenges consistent, or do they vary from river to river?

SF: It does vary, but broadly speaking, watersheds face four main threats: pollution, land use change, climate change, and deliberate human modification. Pollution ranges from industrial effluent to fecal contamination to emerging contaminants like pharmaceuticals. Converting natural areas to urban land uses increases flooding and erosion and reduces habitat quantity and quality. Climate change is modifying the timing, volume, and dynamics of streamflows. And civil works like dams, flood control structures, and of course water withdrawals and consumption, alter river flows and ecosystems more profoundly than perhaps anything else. The common thread behind all these concerns is that human populations and economies—and therefore water needs, and our direct and indirect impacts on rivers—are growing much faster than our development of sustainable technologies.

How will climate change affect river flows?

SF: Global warming is expected to accelerate the water cycle, increasing both flooding and drought. Other impacts are more regional. Some areas will enjoy larger annual flow volumes, whereas others may suffer reduced water supplies. More precipitation will fall as rain instead of snow, and snowpack will melt earlier, changing seasonal flow timing. That may interfere with salmon spawning migration, for example, or render existing water supply infrastructure obsolete. In part due to anthropogenic climate change, mountain glaciers are retreating, effectively shrinking the “water towers” of the Himalayas, Andes, Alps, and Rockies—the headwaters of the great rivers that support much of the global human population, from the Columbia to the Yangtze to the Ganges.

What’s so important about understanding the science of rivers? What does it add to our view of the world?

SF: Just think about floods. Knowing how urbanization or deforestation may affect flooding, or how some kinds of flood control can backfire, or how the flood forecasting behind an evacuation order works, is important for making informed choices. There’s also a philosophical aspect. A dramatic view of a river meandering across a desert landscape of red sand and sagebrush at twilight is made even richer by being able to look deeper and recognize the layers of causality and complexity that contributed to it, from the rise of mountains in the headwaters as a continental plate split apart over millions of years, to the way the river shifts its channel when a thunderstorm descends from the skies to deliver a flash flood.

A consistent theme across the book is the interconnectedness of ideas. Why this emphasis? What’s the significance of those connections?

SF: A fundamental and amazing fact of nature is that not only can so much be so effectively described by math, but the same math describes so many different phenomena. Consider debris flows, a sort of flood-landslide hybrid posing serious dangers from Japan to California to Italy. It turns out we can understand phenomena like debris flows using cellular automata, a peculiar kind of computer simulation originally created to explore artificial life. What’s more, cellular automata also reveal something about the origins of fractal patterns, which occur in everything from tree branches to galaxies to the stock market. Recognizing that ideas from one field can be so powerful in another is important for pushing science forward.

The book seems to present a conflicted view of global water security. It paints an extraordinarily dark picture, but it is also very optimistic. Can you explain?

SF: Grave challenges often drive great achievements. Consider some United Nations numbers. Over a billion people don’t have sufficient water, and deprivation in adequate clean water claims—just through the associated disease—more lives than any war claims through guns. By 2050, global water demand will further increase by a stunning 55%. Little wonder that a former World Bank vice-president predicted the 21st century will see water wars. Yet there’s compelling evidence we can get serious traction on this existential threat. Advances in policy and technology have enabled America to hold its water demand at 1970s levels despite population and economic growth. A focused science investment will allow us to continue that success and replicate it globally.

FlemingSean W. Fleming has two decades of experience in the private, public, and nonprofit sectors in the United States, Canada, England, and Mexico, ranging from oil exploration to operational river forecasting to glacier science. He holds faculty positions in the geophysical sciences at the University of British Columbia and Oregon State University. He is the author of Where the River Flows: Scientific Reflections on Earth’s Waterways.

Browse Our Earth Science 2017 Catalog

Our new Earth Science catalog features a host of new titles on subjects ranging from the new ecology of the Anthropocene era to the microscopic life forms that inhabit the world’s most extreme environments – browse the full catalog below:

The ancient Greek philosopher Heraclitus expressed his philosophy of perpetual change and flow with the words “No man ever steps in the same river twice.” In Where the River Flows, Sean W. Fleming takes us on a comprehensive scientific tour of rivers, the arteries of planet’s water system. Through the lens of applied physics, Fleming explores the rich interconnections between land, sky and biosphere represented by waterways as grand as the Mississippi and as modest as a backyard creek. No less capable a photographer than a writer, Fleming also provided the photograph of Lake Mead for the cover of the catalog.

Where the River Flows by Sean Fleming

In Deep Life, Tullis C. Onstott turns the spotlight on the extraordinary organisms that have been discovered living deep below the surface of the Earth, in locations where life was previously thought to be impossible. Onstott introduces us to bacteria living encased meters deep in solid rock, and plumbs the depths of subterranean lakes that have been cut off from the surface for millions of years. The burgeoning field of geomicrobiology is broadening our understanding of the limits of organic life and holds significant implications for the search for life on Mars.

Deep Life by Tullis Onstott

The scale of human impact on the ecology of our planet is now so extensive that our era is becoming known as the Anthropocene, the age in which human activity is the dominant influence on climate and the environment. Oswald J. Schmitz’s The New Ecology offers a concise guide to contemporary thinking in ecology, and the possibilities that it offers for responsible stewardship of the planet’s ecosystem for the benefit of future generations.

The New Ecology by Oswald J. Schmitz

Oswald Schmitz on “new ecology”: How does humankind fit in with nature?

Schmitz Ecology has traditionally been viewed as a science devoted to studying nature apart from humans. But humankind is singlehandedly transforming the entire planet to suit its own needs, causing ecologists to think differently about the relationship between humans and nature. The New Ecology: Rethinking a Science for the Anthropocence by Oswald Schmitz provides a concise and accessible introduction to what this “new ecology” is all about. The book offers scientific understanding of the crucial role humans are playing in this global transition, explaining how we can ensure that nature has the enduring capacity to provide the functions and services on which our existence and economic well-being critically depend. Recently, Schmitz took some time to answer a few questions about his new book.

The term Anthropocene is cropping up a lot nowadays in discussions about the environment. What does this term refer to?

OS: The Anthropocene essentially means the Age of Humans. Science has characterized the history of the Earth in terms of major events that have either shaped its geological formations or have given rise to certain dominant life forms that have shaped the world. For example, the Mesozoic is known as the Age of the Dinosaurs, the Cenozoic includes the Age of Flowering Plants, Age of Insects, Age of Mammals and Birds. The Anthropocene characterizes our modern times because humans have become the dominant life form shaping the world.

You’ve written several books about ecology. What’s different about this one?

OS: My goal is to communicate the exciting scientific developments and insights of ecology to a broad readership. I hope to inspire readers to think more deeply about humankind’s role as part of nature, not separate from it, and consider the bigger picture implications of humankind’s values and choices for the sustainability of Earth. As such, the intended audience is altogether different than my previous books. My previous books were technical science books written specifically for ecologists or aspiring ecologists.

What inspired you to write this particular book?

OS: The ecological scientific community has done a great job of conducting its science and reporting on it in the scientific literature. That literature is growing by leaps and bounds, describing all manner of fascinating discoveries. The problem is, all that knowledge is not being widely conveyed to the broader public, whose tax dollars are supporting much of that research and who should be the ultimate beneficiaries of the research. Writing this book is my way of explaining to the broader public the incredible value of its investment in ecological research. I wrote it to explain how the scientific findings can help make a difference to people’s livelihoods, and health and well-being.

What is the main take-home message?

OS: I’d like readers to come away appreciating that ecological science offers considerable means and know-how to help solve many of the major environmental problems facing humankind now and into the future. It aims to dispel the notion, often held in society, that ecology is simply a science in support of environmental activism against human progress, one that simply decries human impacts on the Earth. This book instead offers a positive, hopeful outlook, that with humility and thoughtful stewardship of Earth, humans can productively engage with nature in sustainable ways for the mutual benefit of all species—humans included—on Earth.

Oswald Schmitz is the Oastler Professor of Population and Community Ecology in the School of Forestry and Environmental Studies at Yale University. His other works include Resolving Ecosystem Complexity (Princeton). His most recent book is The New Ecology: Rethinking a Science for the Anthropocence.

Women in Science: Who are they at Princeton University Press?

Women have made great strides in STEM fields, but there are still far too few women in science—a situation that remains both complex and troubling. Here at Princeton University Press, we are proud to publish numerous important books in the sciences by women, on topics ranging from de-extinction, to primitive stars, to fireflies. If you’re interested in learning more about the lives and ideas of #WomenInScience, DiscovHer—a site dedicated to showcasing these remarkable people—has put together a great list of blogs for you to follow. And check out some of the most fascinating PUP authors and their books here:

Shapiro Jacket Beth Shapiro, an evolutionary biologist
and pioneer in “ancient DNA” research, shows how
de-extinction might change the future of
conservation in
How to Clone a Mammoth.
The Cosmic Cocktail What is the universe made of?
Acclaimed theoretical physicist Katherine Freese
shares the most cutting edge research aimed at
answering that question in
The Cosmic Cocktail.
Frebel Anna Frebel, who discovered several of the oldest
and most primitive stars, tells the story of the
research behind stellar archeology in
Searching for the Oldest Stars.
Lewis Have you ever been curious about the fireflies
that light up our summer nights? Noted
biologist and firefly expert Sara Lewis
answers all your questions and
more in Silent Sparks.
5-9 Fairbairn_Odd Daphne J. Fairbairn, a professor of biology,
shows that the differences between men and
women are negligible when compared with
differences between males and
females in the animal kingdom in
Odd Couples.

Delve into the fascinating world of
earthquake prediction in
Predicting the Unpredictable by
seismologist Susan Elizabeth Hough.

Conversations on Climate: Paul Wignall says climate crisis is nothing new

NEW climate pic

Climate Change: We’ve Been Here Before
by Paul Wignall

The world’s climate is always changing and always has. Even during the past few centuries we have seen substantial variations, but only recently have we begun to blame ourselves for them. But how much natural variability is there, and just how extreme can climate change be? To gain some longer-term perspective on the climate’s variability we can look back through geological time, particularly at catastrophic events known as mass extinctions. In my recent book, The Worst of Times, I focus on an 80 million year interval when life on Earth suffered one disaster after another. These catastrophes included the Permo-Triassic mass extinction, the worst crisis that life has ever faced. It is not very reassuring to find that these extinctions all coincide with intervals of rapid global warming.

rocks from Permian-Triassic boundary in Guizhou

Sedimentary rocks from the Permian-Triassic boundary in Guizhou Province, SW China that record evidence for the greatest of all mass extinctions.

So, are we all going to hell in a hand basket? Well, probably not just yet. The story from the past is much more nuanced than this and I believe there is substantial hope that all is not so bad today. The reason is that the worst 80 million years happened a long time ago and more recently (in the past 100 million years) things have got a lot better. At one time all the world’s continents were joined together into a single supercontinent called Pangea. This seems to have created a global environment that was very fragile. Every time there was a phase of giant volcanic eruptions in Pangea, climates changed rapidly, the oceans stagnated and life began to suffer. The cause seems to be not the actual lava flows themselves, although these were very large, but the gases that bubbled out of them, especially carbon dioxide, everyone’s (not so) favorite greenhouse gas. As I explain in my book the effects of these gases on climate and oceans changed global environments in a disastrous way. Rapid increases in global temperature were part of the story and the results were some of the hottest climates of all time. The results for life were profound; dominant groups went extinct and new groups appeared only to have their brief hegemony terminated by the next disaster. By the time these waves of extinction were over the dinosaurs were the newest kids on the block. They went on to thrive and get very large whilst scurrying around at their feet were a group of small furry creatures. These were the mammals and they would have to wait a long time for their turn.

basalt flows

A landscape entirely made of giant basalt flows from the Permian Period, Yunnan Province, SW China.

Dinosaurs were the dominant animals on Earth for over 140 million years and it is often thought that they were somehow competitively successful but I think they were just very lucky. They appeared at a time when the Earth was rapidly getting better at coping with climatic changes caused by giant volcanism. There were plenty of episodes of large-scale eruptions during the time of the dinosaurs and none caused major extinctions. The key thing was that Pangea was splitting up and separate continents were forming – the familiar continents of today’s world. Such a world seems better able to cope with rapid increases in atmospheric gases because feedback mechanisms are more effective. In particular rainfall is more plentiful when the continents are small and nowhere is too far away from the sea. Rain scrubs the atmosphere and thus alleviates the problems.

However, the $64,000 question is how quickly this feedback can happen. The world seems better at doing this today than it was in deep time but maybe we are adding the carbon dioxide too fast to our atmosphere, maybe we are swamping the system? This is a hard question to answer, we’re not sure how much gas came out during the giant eruptions of the past and so it’s hard to directly compare with the present day pollution rates. What we do know is that past mega-eruptions have been remarkably damage-free. For over 100 million years, our world has been a benign place.

Oh, except for a remarkably large meteorite impact that was bad news for the dinosaurs, but that’s another story.

Wignall jacketPaul B. Wignall is professor of palaeoenvironments at the University of Leeds. He has been investigating mass extinctions for more than twenty-five years, a scientific quest that has taken him to dozens of countries around the world. The coauthor of Mass Extinctions and Their Aftermath, he lives in Leeds.

Conversations on Climate: Economists consider a hotter planet on PBS Newshour

NEW climate picIn Climate Shock, economists Gernot Wagner and Martin Weitzman tackle the likely prospect of a hotter planet as a risk management problem on a global scale. As 150 world leaders meet in Paris for the UN Conference on Climate Change, both took the time to speak to PBS Newshour about what we know and don’t know about global warming:

Everyone is talking about 2 degrees Celsius. Why? What happens if the planet warms by 2 degrees Celsius?

Martin L. Weitzman: Two degrees Celsius has turned into an iconic threshold of sorts, a political target, if you will. And for good reason. Many scientists have looked at so-called tipping points with huge potential changes to the climate system: methane being released from the frozen tundra at rapid rates, the Gulfstream shutting down and freezing over Northern Europe, the Amazon rainforest dying off. The short answer is we just don’t — can’t — know with 100 percent certainty when and how these tipping points will, in fact, occur. But there seems to be a lot of evidence that things can go horribly wrong once the planet crosses that 2 degree threshold.

In “Climate Shock,” you write that we need to insure ourselves against climate change. What do you mean by that?

Gernot Wagner: At the end of the day, climate is a risk management problem. It’s the small risk of a huge catastrophe that ultimately ought to drive the final analysis. Averages are bad enough. But those risks — the “tail risks” — are what puts the “shock” into “Climate Shock.”

Martin L. Weitzman: Coming back to your 2 degree question, it’s also important to note that the world has already warmed by around 0.85 degrees since before we started burning coal en masse. So that 2 degree threshold is getting closer and closer. Much too close for comfort.

What do you see happening in Paris right now? What steps are countries taking to combat climate change?

Gernot Wagner: There’s a lot happening — a lot of positive steps being taken. More than 150 countries, including most major emitters, have come to Paris with their plans of action. President Obama, for example, came with overall emissions reductions targets for the U.S. and more concretely, the Clean Power Plan, our nation’s first ever limit on greenhouse gases from the electricity sector. And earlier this year, Chinese President Xi Jinping announced a nation-wide cap on emissions from energy and key industrial sectors commencing in 2017.

It’s equally clear, of course, that we won’t be solving climate change in Paris. The climate negotiations are all about building the right foundation for countries to act and put the right policies in place like the Chinese cap-and-trade system.

How will reigning in greenhouse gases as much President Obama suggests affect our economy? After all, we’re so reliant on fossil fuels.

Gernot Wagner: That’s what makes this problem such a tough one. There are costs. They are real. In some sense, if there weren’t any, we wouldn’t be talking about climate change to begin with. The problem would solve itself. So yes, the Clean Power Plan overall isn’t a free lunch. But the benefits of acting vastly outweigh the costs. That’s what’s important to keep in mind here. There are trade-offs, as there always are in life. But when the benefits of action vastly outweigh the costs, the answer is simple: act. And that’s precisely what Obama is doing here.

Read the rest on the PBS Newshour blog.

Wagner coverGernot Wagner is lead senior economist at the Environmental Defense Fund. He is the author of But Will the Planet Notice? (Hill & Wang). Martin L. Weitzman is professor of economics at Harvard University. His books include Income, Wealth, and the Maximum Principle. For more, see and


Conversations on Climate: Victor W. Olgyay on Design and Ecology’s Interconnection

NEW climate pic

Connecting Buildings to Address Climate Change
by Victor W. Olgyay

“We are not all weak in the same spots, and so we supplement and complete one another, each one making up in himself for the lack in another.”
Thomas Merton, No Man is an Island

In Pope Francis’ recent visit to the US, he referred to several interesting touchstones in America’s spiritual history, including Thomas Merton. Merton was a prolific writer, and often emphasized the importance of community and our deep connectedness to others as a nurturing aspect of spiritual life. The importance of connectedness is not only true of spirituality, but also applies to ecology, an idea we continue to relearn. We cannot throw anything out, because our discard comes back to us in the water we drink, the food we eat, or in the air we breathe. Our society is intimately connected; we all depend on the same resources to survive.

As the world’s leaders debate political solutions to our current climate crisis, brought about largely by our neglect of this idea, we can look to some very practical solutions within our built environment to protect and enhance resilient communities. In buildings, these broader connections to community exist as well. Buildings have traditionally emerged from context, been built out of local materials, fit into the contours of the landscape, and made use of the local climate to help heat and cool the structures. Almost inevitably, these buildings show a climatic response, drawn from the genus of place, mixed with human inventiveness. Between people and place a dialogue is evoked, a call and response that started long ago, and continues to evolve today.

This conversation has a science to it as well. In the mid 20th century many architects dove deep into the rationality of design, rediscovering how buildings can be designed to optimize their relationship to people, climate and place. Bridging technology, climatology, biology and architecture, the science of bioclimatic design was given quantitative documentation in Design with Climate, the 1963 text recently republished by Princeton University Press. The interdisciplinary approach to design that book describes remains the fundamental approach to designing high performance buildings today.

Integrated building design connects across disciplines.

Integrated building design connects across disciplines.

But today’s high performance buildings are often functionally isolated from our neighbors, from our community. Rather than emphasize connectivity, we have built our utility network on the idea that our buildings are at the consuming end of a wire. We aspire to make our buildings independent, but objectively we remain largely interdependent. By recognizing our commonality, we can reimagine our activities, so our buildings use connectivity to provide services that benefit the larger community as well as the building owner or occupant.

High performance solar powered buildings can use the electric utility grid to achieve net zero energy use over the course of a year. When building PV systems generate more electricity then they need, they can push it back into the grid, and when they need electricity, they can pull it from the grid, in essence, using the electrical grid as if it were a large battery.

While this is quite reasonable from a building end user perspective, what happens if we are drawing energy when the electricity is in great demand and pushing electricity onto it when there is already an excess of electricity? Looking at the system from the grid perspective is a different point of view. High performance buildings can make utility electricity problems worse.

By intelligently connecting buildings we can respond appropriately to utility grid needs, and provide services. To some extent this has been happening for many years in the form of “demand response” where building owners opt to reduce their power consumption when the utility is stressed in meeting demand. In turn, building owners receive reduced electricity charges.

But this is only the beginning. When we aggregate neighborhoods of buildings, we can provide a wide variety and quantity of services to the grid. In addition to demand response, buildings can (thanks to on site solar electricity generation) supply low carbon electricity to the grid. Buildings can shift loads, to use electricity when there is an over supply. Buildings (using batteries or thermal systems) can store energy for use later. Portfolios of buildings can even provide voltage regulation in useful quantities.

These ancillary products of high performance buildings are of great value economically to both the building owner and to the utility providing electricity and electricity distribution services. They are worth money, and a building that has always carried a utility operating cost can now be designed to have an operating income. And perhaps even more importantly, buildings communicating with the grid can help the grid run more smoothly, and by decarbonizing the electricity reduce the pollution and greenhouse gas emissions associated with providing utility services to us all.

Connecting buildings to act as an asset to the utility grid turns our current “end user” paradigm on its head. Individual projects can multiply their positive impact by increasing connectedness. As more of us coordinate with electrical utility systems, we have a stronger base of resources, a more resilient electrical grid, and more sources of income.

The bioclimatic design approach described in Design with Climate now has a renewed urgency. As we design our new buildings and redesign our existing buildings to purposefully engage with their context and climate and community, we can readily reduce building energy use and emissions at marginal cost. Connecting with climate, and intelligently connecting with the utility grid empowers buildings to have a positive environmental impact. With the issue of climate change looming ever sharper, the design community must recognize their deep connection to the climate issue, and take responsibility for moving the design professions and society forward to a solution.

In our commonality we find a larger, critical context that is set by our interdependence. Indeed, as Merton noted, in community we complete one another, and recognize our common home.

DesignVictor W. Olgyay is an architect and the son of the author of Design with Climate.