(Press release from Cooperative Institute for Research in Environmental Sciences (CIRES) and the Institute for Arctic and Alpine Research (INSTAAR) at the University of Colorado Boulder (CU), NOAA, NASA, and the University of Michigan)

A graph showing the hot spots of methane anomalies near the Four Corners region.

Last year, we told you about how researchers were trying to figure out why the Four Corners area was such a hotspot for methane.

Well, now they’ve got some answers. They determined there are more than 250 sources of methane, but that a small number of them are responsible for about half of the emissions.

Christian Frankenberg is a research scientist at the Jet Propulsion Laboratory in Pasadena, and has been working on this.