The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009 (dark colors are lower than average; lighter colors are higher). (NASA/JPL-Caltech/University of Michigan)
A “hot spot” over the southwestern US that is responsible for producing the largest concentration of methane above the country is far larger than previously estimated, officials from NASA and the University of Michigan have revealed, and emissions from fossil fuels such as coal are being blamed. According to the US space agency, a new analysis…
