New study shows some U.S. states are happier than others
November 12, 2009, 12:18 a.m. by Katherine Butler
Key ingredients are more tolerant, wealthy citizens and high level of creativity.
Scientists propose a Plan B to cool the planet through geoengineering
November 2, 2009, 12:18 a.m. by Katherine Butler
But are we willing to live without blue skies?
United Nations says existing biofuel policies bad for the Earth
October 30, 2009, 3:55 p.m. by Katherine Butler
New report calls for less damage in the development of biofuels.