Michelle Obama visits Youthbuild's green service day
March 18, 2009, 1:30 p.m. by Karl Burkart
The first lady helps build a green home for hurricane victims.
In the Green Room: Building a sustainable community
January 13, 2009, 6:53 p.m. by Emily Murphy
Video: Chuck visits a unique community with an organic farm, three restaurants, thousands of acres of green space and EarthCraft homes.
8 uncanny examples of convergent evolution
Geologists baffled by remote island that's covered in mysterious rocks
This undersea restaurant in Norway will moonlight as an artificial reef
Hidden camera reveals true identity of 'ghost' in U.K. man's tool shed
Students perform emotional haka dance in memory of Christchurch mosque victims
9 of the world's largest dog breeds