Global investment in renewable energy powered to record $257 billion in 2011, according to UN report

Small-scale processors help meat go local

Scientific data visualized in abstract compositions

Eco-minded art collective invokes the call of nature

Outdoor book installation in Belgium offers reading material in open air

With bleak European prospects, clean energy companies focus on other markets

An illusory mountainscape installation 'invisibly cast' in draped plastic

New figures from the Energy Information Administration show clean energy growth over the last decade

Big surprise: Portland is number one