Science: NASA today named Gavin Schmidt, 46, to lead the Goddard Institute for Space Studies (GISS), one of the worlds top climate research institutions. Schmidt, a climate modeler and current deputy director of the lab, follows in the footsteps of prominent climatologist James Hansen, who retired from the agency last year. Although Schmidt does not have quite the public name recognition of Hansen, he is known as one of the nations most visible communicators of climate science. With more than 120 scientific...