BLANCO, N.M. – Most evenings, the quiet is almost intoxicating. The whoosh of the wind through the junipers, the whinny of horses in their stalls, the raspy squawking of ravens – those are the sounds Don and Jane Schreiber have grown to love on their remote Devil’s Spring Ranch. The views are mesmerizing, too. Long, lonesome ridges of khaki-colored rocks, dome-like outcrops and distant mesas rise from a sea of sage and rabbitbrush. The ranch and surrounding countryside are a surprising setting for an enduring climate change problem: a huge cloud of methane – a potent, heat-trapping gas – that is 10 times larger than the city of Chicago.