Switching to clean, safe, renewable energy is one of the most important things we can do for the climate, for the health of our communities now, and for the health of future generations.

Our leaders can support the transition to a greener, fairer future. Or they can get out of the way. But they can't stop it.

Understanding the centuries-long abolitionist movement offers insight into the vision, the structural changes, the personal commitments, the political struggles, and the global movement required to stave off catastrophic climate change.

Its health and other societal costs are staggering. Phasing out coal-fired power plants would be good for the country.

There are steps Washington could take, without waiting for a "grand bargain," that could make a big difference for our states and communities. Even in this famously gridlocked Congress, there are signs of progress on climate change. There's a new,...

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As just about everyone knows, there are gaping chasms separating the worldviews of fossil fuel promoters, nuclear power advocates, and renewable energy supporters. But crucially, even among those who disdain fossils and nukes, there is a seemingly...

After some seven decades of mixed results in development assistance, there is a growing consensus that the greatest challenge is governance—in both the recipient and the donor countries.

Photo credit: Supreme Court Pediment by Flickr.com user Kevin Harber

Did you hear that Keystone XL—the long-planned pipeline from the Canadian tar sands to refineries on the Gulf Coast—got ...

Photo credit: Supreme Court Pediment by Flickr.com user Kevin Harber

President Barack Obama’s rejection of the Keystone XL tar sands pipeline marks one of the biggest victories for the U.S. environmental movement in years. Speaking this morning from the White House, Obama–flanked by Vice President Joe Biden and...

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Over at Fast Company, Terry Tamminen notes the effects that tailpipes might have on human behavior in advance of COP15: New research from Cairo shows that rats become more...

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