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As oil spill contaminants enter Galveston Bay food chains our concerns turn to how these animals are affected in the short and long term, and whether or not seafood species that live there could constitute a human health risk in the future.

With fresh precedent for industry engagement and robust data to guide cost-effective action, now is the time for industry to address the methane emissions risk.

Early and sustained dialogue among diverse stakeholders will increase the chances of geoengineering research being handled responsibly, equitably, and cooperatively.

Galveston Bay is one of America’s greatest estuaries, home to Texas seafood providers and fishermen, and the entry point to the Port of Houston.

We've worked with AT&T to save water and energy used to cool its buildings. Now we're working together to help organizations in five water-stressed areas do the same.

Scarcity of water and energy threatens to undermine successful economic development. So, how do we manage our resources to ensure that they are available and sustainable?

Like many species across the American West, the lesser prairie-chicken requires vast habitat to survive, but it competes for territory with energy production and agriculture. Habitat exchanges offer a viable solution.

There is no doubt that certain regions of the United States experienced unbearably cold temperatures this winter. But that’s no reason to doubt the overwhelming evidence about climate change.

How an awkward moment in the dentist’s chair convinced a climate scientist to have a coherent response always at the ready.

Every spring, we launch our most important membership fundraising drive of the year. The Annual Fund provides vital financial resources for our programs’ innovative solutions.

Appeals court upheld the EPA's regulations to reduce soot pollution from power plants. This clears the way for life-saving protections to be implemented.

All-nighters are usually the result of not doing your homework, but this evening it’s a call for comprehensive action on climate change.

The cleantech sector has taken off, whether the news reports it or not.

The question is whether the levels at which we are exposed present significant risks of adverse health effects.

Water from the Colorado River will literally pulse through the U.S. - Mexico border as a sign to the rest of the world of what we can accomplish through cooperation between nations.

As I see it, methane pollution from the oil and gas industry is a lot like kids and vegetables. Reducing it is good for them, but we have to have a rule that requires them to do it.

EPA announces Tier 3 standards to reduce air pollution from cars. Here's what Fred Krupp, president of Environmental Defense Fund, has to say.