FILE - In this July 25, 2014, file photo, a roofer works under the mid-day sun in Gilbert, Ariz. Federal science officials announced Friday that for the third time in a decade, the globe sizzled to the hottest year on record. Both the National Oceanic and Atmospheric Administration and NASA calculated that in 2014 the world had its hottest year in 135 years of record-keeping. Earlier, the Japanese weather agency and an independent group out of University of California Berkeley also measured 2014 as the hottest on record. (AP Photo, File)
WASHINGTON — For the third time in a decade, the globe sizzled to the hottest year on record, federal scientists announced Friday.
But Mann, Dessler, Francis and others say there have been quality and trustworthy issues with some satellite measurements and they only show what's happening far above the ground.