ENVS 15: Environmental Issues of the Earth's Cold Regions

Temperatures in the Arctic continue to warm twice as fast as the rest of the world; that's according to the U.S. government's latest climate report. The past five years in the Arctic have been the warmest there since records began in 1900. Decades ago, an eccentric Russian geophysicist warned that frozen soil, called permafrost, contained enough greenhouse gas itself to pose a threat to the climate if it ever melted. ...