Environmental Defense -- Finding the ways that work

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Polar Bear

ABOUT US

For nearly four decades, we have linked science, economics and innovative private-sector partnerships. Together, we create breakthrough solutions to environmental problems.

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The Science of Global Warming

The Basics

Many kinds of pollution trap heat at the Earth's surface, like a blanket. As pollution builds up, too much heat is being trapped.


 

A Dangerous Spiral

The climate system is complex. Each part depends on other parts. If a critical component reaches a tipping point, the whole system can be disrupted. Here's a look at two keys:


 

How Can We Fix It?

See why each of these sectors matters:


 

How you can help »