Associated Press: Global warming is messing with the planet’s thermostat. That warning came Thursday from Richard Spinrad, head of research at the National Oceanic and Atmospheric Administration, in releasing the annual update of science’s Arctic report card. Warming temperatures continue in the polar north, changing wind patterns, melting sea ice and glaciers and affecting ocean and land life, the report said. The Arctic is a sort of natural regulator in terms of the amount of heat …