Allen: Why we must reduce methane emissions – now

Information leaks, whether true, false or misinterpreted, may have political fallout. But there are gas leaks occurring that have fatal consequences for civilization and the biosphere.
Methane levels in the atmosphere have risen faster than carbon dioxide over the last century. After a hiatus over the first decade of this century, the levels are rising again. Since this was coincident with widespread hydro-fracturing in North America, researchers have been focusing attention on determining how m