Sustainably-powered semi-submarine to be used for climate and ocean research

Aerial photos of the Ivanpah solar thermal plant by Jamie Stillings

Recycling programs give fishermen incentives to collect discarded fishing gear

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

Small-scale processors help meat go local

Outdoor book installation in Belgium offers reading material in open air

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

Big surprise: Portland is number one

86 year-old reintroduced indigenous giant toirtoises to the island he bought in 1962

Conservation group American Rivers urges support for clean water protection