A report from the United Nations Environment Programme and Bloomberg New Energy Finance sums up the rapid growth of renewable energy in 2011, and looks at some of the clouds on the horizon
A new study argues that replacing all the world’s coal power plants with natural gas would do little to slow global warming this century
Many coal plants are shutting, and natural gas plants are on the rise—but switching from coal to natural gas might not make much difference this century
Also, global warming could be behind Europe’s frigid winter, fracking for natural gas could be a major greenhouse gas culprit, and grass clippings could make a new kind of solar panel
After pressure from Republicans for a quick decision, the Obama administration decided to reject the proposed pipeline rather than try to rush its environmental review
Wind energy may do more than improve farm income. When sited in agricultural fields, turbines may help crops to grow, new research indicates.
The ailing economy has taken its toll on renewables investment in the U.S. and Europe—so what does the future hold?
In other news, renewables hit bottlenecks, feed-in tariffs for clean energy get choked by austerity measures, and the “Battle of the Buildings” begins
Political will seen as main green power obstacle, but practical issues remain