Satellite data found methane 'hot spot' in the area last year
                                
                                
                                    (Newser) -
                                    Last year, a puzzle emerged in the  Four Corners area , where Arizona, Colorado, New Mexico, and Utah come together: The area, scientists found, has had a far higher concentration of methane than anywhere else in the US. Now, teams of federal, university, and other researchers are trying to figure out...