File:CoolingFromNuclearWar.svg

English: Temperature change in degrees C from a 1925-1975 baseline of a simulated nuclear war starting in 2006 that injects 5, 50 and 150 Tg (teragrams) of smoke into the upper troposphere, from whence solar heating lofts it into the stratosphere, per “Nuclear winter revisited with a modern climate model and current nuclear arsenals: Still catastrophic consequences”, in Journal of Geophysical Research^[1] (in en), volume 112, issue D13, (Please provide a date or year), Bibcode: 2007JGRD..11213107R, DOI:10.1029/2006JD008235, ISSN 0148-0227, Wikidata Q55877978. At 3 years after a war lofting 150 Tg of smoke into the upper troposhpere, surface temperatures in the Northern Hemisphere average 10 degrees below baseline (green dotted line), while the global average is 7.1 degrees below the baseline (solid black line). After 10 years surface temperatures temperatures in the Northern Hemisphere average 4.2 degrees C below the baseline (blue broken line), while global temperatures average only 3 degrees low (red dashed line).