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10 most climate-ready cities in the U.S. [SLIDESHOW]

What is your city doing about climate change? Boyd Cohen of CO2 Impact ranked the big U.S. cities that are leading the way, based on political commitment, green buildings, university […]

Stopping pollution that causes asthma attacks

“Air pollution is especially dangerous to children because their lungs are still growing.” I heard those words earlier this week while listening to the Senate Environment and Public Works’ subcommittee […]

Colorado town considers "How much renewable energy is feasible" — 80 percent by 2025?

A great story of a city looking to — literally — take ownership of its energy future: The Colorado Renewable Energy Standard, as amended last year by the state Legislature, […]

Representative Tipton: My 150 isn't even my biggest truck

Recently U.S. Rep. Scott Tipton came to Aspen to speak to his Republican supporters here. He said that he drove an F150, and that that wasn’t even his biggest truck. […]

Industry-funded climate crank becomes a media darling

A new study examining TV news coverage of federal proposals to regulate global warming pollution has turned up evidence of journalistic malpractice when it comes to accurately informing viewers about […]

When the Nile runs dry

A new scramble for Africa is under way. As global food prices rise and exporters reduce shipments of commodities, countries that rely on imported grain are panicking. Affluent countries like […]

Barbie's fairytale interrupted by the roar of a thousand chainsaws

A long time ago, in a land far, far away, Greenpeace sent Mattel a letter. Our researchers had discovered Barbie’s not so magical secret: her packaging is linked to the […]

The Deniers are Coming Through the Wire

I published an op-ed in the Denver Post today about climate change’s first casualty, which might be joy. The article isn’t terrible, really, and it’s posted here: http://www.denverpost.com/opinion/ci_18201745 if  you care to read […]

Smaller generation incites largest renewable energy gains

While seeming counterintuitive, a focus on smaller-scale distributed generation enables more and faster development of cost-effective renewable energy. In April, I wrote about the illusion that we can “move forward […]

Key actions on climate & energy at the Earth Summit in 2012

Carbon pollution from fossil fuel use reached the highest level yet in 2010, according to the International Energy Agency.  So should we throw up our hands?  No, this is a […]