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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.

Consumer and wholesale purchasing power are combining to change the chemical makeup of the products we see on store shelves and bring into our homes.

On International Polar Bear Day, learn how environmental challenges facing the polar bear also touch on international commerce and morality.

A 2006 report on the decline of oceans' health resurfaces on social media, prompting a new discussion on overfishing and sustainable fisheries management.

The Climate Reality Project announced the delivery of more than 120,000 citizen comments to the White House OMB in support of a strong SCC.

This case is remarkable for what is not at stake, as well as for what is.