Policymakers should look to reductions in potent, short-lived pollutants to reduce warming faster than cuts to carbon dioxide emissions alone, write Nobel Prize-winner Mario Molina and Institute for …

Republican presidential candidates (L-R): Rick Santorum, Newt Gingrich, Michele Bachmann, Mitt Romney, Rick Perry, Ron Paul, Herman Cain, and Jon Huntsman stand on stage before the start of the Reaga…

Michele Bachmann, Mitt Romney and Rick Perry on stage at the Ronald Reagan Presidential Library. (Mario Anzuoni/courtesy Reuters) Protestors disrupted Michele Bachmann’s major foreign policy speech …

  Former Guatemalan dictator Efrain Rios Montt leaves the public prosecutor’s office in Guatemala City (Jorge Lopez/Courtesy Reuters).   This is a guest post by Natalie Kitroeff, a res…