National Public Radio: A new study helps explain why the planet didn’t warm up dramatically over the course of the past decade, even though the gases that cause global warming increased dramatically. Scientists have identified a surprising phenomenon 10 miles above our heads that explains part of this unexpected pause in warming. “People very reasonably have asked me why is it that in the last decade, it just doesn’t look it got that much warmer, when CO2 has continued to increase, and in fact has …