“The waste heat generated by car engines, power plants, home furnaces and other fossil fuel-burning machinery plays an unappreciated role in influencing regional climates, new computer simulations suggest. By altering atmospheric circulation, human-made heat may raise temperatures by as much as 1 degree Celsius during winter in the northernmost parts of the world.”
G.J. Zhang, M. Cai and A. Hu.
Energy consumption and the unexplained winter warming over northern Asia and North America.
Nature Climate Change. Published online January 27, 2013. doi:10.1038/nclimate1803.