If There’s Global Warming … Why Is It So Cold?

It’s that time of year, the perennial “It’s snowing so it can’t be warming” season – or, as scientists call it, “winter”. Depends on where you’re standing, actually — I stood on a frozen lake with Dr. Jeff Masters to discuss the current planetary changes, but at the same time, in Alaska, historic warm temperatures…

NASA’s AIRS Sees Polar Vortex Behind U.S. Big Chill


Published January 2014: The chilling weather phenomenon that hit much of the U.S. in January is explained by scientist Eric Fetzer using data from NASA’s AIRS instrument.