While winter may be approaching, researchers using data from satellites and weather stations around the world have found the air temperature near the Earth's surface has warmed on average by 1 degree
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/satellites-shed-light-warmer-world
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change