EcoWatch: This past May was the hottest on record, according to the National Oceanic and Atmospheric Administration (NOAA). "The combined average temperature over global land and ocean surfaces for May 2015 was the highest for May in the 136-year period of record, at 0.87°C (1.57°F) above the 20th century average of 14.8°C (58.6°F)," said NOAA. This breaks the previous record, which was set last May. Latest global temperature data are breaking records http://t.co/2KE9n5zs1X 2015 still hottest year to date...