We canvassed the world of the social and behavioral sciences, looking for rising stars whose careers promise to make a lasting mark. We'll be profiling the top 30 throughout the month of April.
Computer models combined with 1,000 years of climate data indicate that greenhouse gases will bring severe droughts to the Southwest and Central Plains by the end of the century.
The world needs to be spending $800 billion a year more on clean energy if it's to meet international climate goals. Given the $500 billion a year we already spend on fossil fuel subsidies, it should be within reach.