As oil prices drop, will it be so easy to be green?
October 22, 2009, 10:22 a.m. by Amy Green
Now that oil is trading for half of what it was last summer, will investors want to put their money into alternative energy sources? We look at the data.
Transition from oil to renewable energy 100 years away, says Exxon Mobil
June 2, 2009, 12:35 p.m. by S.A. Rogers
Oil giant claims ‘no viable alternatives’ will emerge in the next century.
Squirrels rely on birds to let them know when it's safe to go out
Why a beluga's squishy head is so special
8 creative techniques to keep coral reefs alive
Scientists discover 'monster' black hole that 'should not even exist'
Radar uncovers another Viking ship in Norway
Drone captures the largest swarm of sea turtles ever filmed