Environmental crisis at tipping point—and US must show way
(NEWSER) - Carbon levels are skyrocketing, ice caps are melting, and global flooding is on its way if Barack Obama doesn’t do something about it, and quickly, a NASA scientist says. Top climate expert Jim Hansen says it’s crucial that within 4 years the next president change America—the world’s biggest carbon emitter and its largest economy—after 8 years of ignoring global warming, the Guardian reports. More»