Daily Archives: August 20, 2015

The observational evidence that the Earth is warming is overwhelming and unmistakable.

Surface observations of temperature over land and ocean have shown that all but one of the 15 warmest years on record have occurred since 2000. the average length of the ice season on a collection of widely distributed Northern Hemisphere lakes, each with at least 150 years of continuous record, has decreased by over two weeks. The areal extent of the Northern Hemisphere’s wintertime cold pool has systematically shrunk in the last two winters recording the smallest seasonal average cold pool areas since records began in 1948-1949. Continue reading →