Human population growth and overconsumption are at the root of our most pressing environmental issues, including the species extinction crisis, habitat loss and climate change. To save wildlife and wild places, we use creative media and public outreach to raise awareness about runaway human population growth and unsustainable consumption — and their close link to the endangerment of other species.

There are more than 7 billion people on the planet, and we're adding 227,000 more every day. The toll on wildlife is impossible to miss: Species are disappearing 1,000 to 10,000 times faster than the natural rate. It's clear that these issues need to be addressed before it's too late.


The Center has been working to address the connection between rampant human population growth and the extinction crisis since 2009. Our innovative outreach and public-pressure campaigns — like our award-winning Endangered Species Condoms project — focus on common-sense solutions, including the empowerment of women and girls, the education of all people, universal access to birth control, sustainable consumer choices, and a societal commitment to giving all species a chance to live and thrive.

In 2013 we expanded our population program to encompass overconsumption and sustainability, too — since these issues are intricately tied to the impact of human population on endangered species and the health of our planet. The expanded program will continue using a combination of creative media, advocacy, outreach, and the expansion of our nationwide network of population and sustainability activists to keep these critical issues in the spotlight.


Our Population and Sustainability Program has:

  • Distributed more than half a million Endangered Species Condoms across all 50 U.S. states.
  • Launched Take Extinction Off Your Plate, the first full-time program by a major environmental group addressing the devastating impact of the meat industry on wildlife.
  • Commissioned a groundbreaking poll showing that most Americans believe human population growth is a significant factor in the disappearance of wildlife.
  • Created an innovative social media campaign that inspired people from around the world to share photos of what living in a world of 7 billion looked like and felt like to them.
  • Mobilized supporters to submit more than 1,500 letters to the editor to newspapers around the country about the impacts of population growth on wildlife.
  • Generated momentous media attention on the often ignored issue of human population in top outlets, including The New York Times, The Los Angeles Times, The Huffington Post, The Washington Post, Mashable and dozens of radio and podcast appearances.
  • Reached more than one million people with our campaigns on Facebook and Twitter.


Polar bear

New Video: Meatstinction! Learn about the monster threatening life on the plant and how you can help defeat it

Take Action:
Don't Let the Meat Industry Hijack the Food Pyramid
Tell McDonald's: Billions of Burgers Are Bad for Our Future
Take Our Pledge to Take Extinction Off Your Plate

Huffington Post Op-ed: "Cheap Meat Comes at High Cost to Farm Animals, Wildlife"

Read the latest edition of our e-newsletter Pop X: Can IUD Earrings Save the World?

Check out these sustainability tips:
12 Ways to Live More Sustainably

Distributing Endangered Species Condoms?
Tips and tricks for hosting your own event

Our statement on immigration and population

Featured Videos

Meat production is responsible for more environmental degradation than any other single industry. Learn more and help fight the monster:


Human Population Growth and Wildlife Extinction:



Current world population:

Help support our cutting-edge work in the Population and Sustainability Program.

Learn what's at stake with one person's diet. (Infographic)

And don't miss this infographic about consumption.


There are nearly 7.2 billion people on the planet today. That means more crowds, more traffic, more pollution… and less room for wildlife. We want to know what living in a world of 7 billion looks like and feels like to you. Submit your photos to our Instagram campaign.

Florida panther condom coverEndangered Species Condoms
Condoms wrapped in colorful wildlife-themed packages offer a unique way to talk about human population pressure on endangered species. Learn why — and how — to get involved.

Florida panther condom cover Take Extinction Off Your Plate
How can you eat an Earth-friendly diet? Meat production is one of the main drivers of environmental degradation globally. Reduce your consumption and help save species, habitat, water, emissions and air quality. Take our pledge now.

What Is Sustainability?
Every day we make choices that affect the animals, plants and climate of our planet. How do we live sustainably so as to help — not hurt — the Earth? Hint: Choose wild.

Pop X: Our Free Monthly E-newsletter
Sign up to receive Pop X and check out past editions of our newsletter covering population, overconsumption and sustainability, and the extinction crisis —  and what you can do to help.

Huffington Post Blog
Check out our population and sustainability director Stephanie Feldstein’s Huffington Post blog for late-breaking commentary on how human population growth and overconsumption affect wildlife.

Florida panther condom coverExtinction-free-BBQ
Meat production is responsible for more environmental degradation than any other single industry. So next time you fire up the grill, check out our website with meatless recipes from top chefs and make your cookout extinction-free.

Interactive mapInteractive Map
Which endangered species live near you — the black-footed ferret, the yellow-billed cuckoo? Find out now by clicking on our interactive map of at-risk plants and animals in your area.

Florida panther condom coverWrite a Letter to the Editor
Want to spread the word through words? A letter to the editor of a local paper is a great way to get peoplet talking about population and sustainability. Learn how with our guide in our Take-action Toolbox.

Langes metalmark butterfly Top 10 U.S. Endangered Species Threatened by Population
As human population and consumption grow, we’re crowding out, paving over, poisoning and eating other species to extinction. Learn about these 10. Is Sustainability? Billion and Counting Campaign

xPopulation and Climate Change

xPopulation and Extinction

Overpopulation and OceansPopulation and Oceans

Overpopulation and OceansPopulation and Urban Wildlands

Media highlights
Press releases




Contact: Stephanie Feldstein