July 2019 Global Temperature Update July 2019 was the hottest month ever in the GISTEMP analysis, i.e., since 1880 when adequate instrumental data became available. July was +0.93°C relative to 1951-1980 or +1.17°C relative to 1880-1920, which is significantly warmer than prior Julys (left figure above). July was the second consecutive month of a monthly… read more
June 2019 Global Temperature Update June 2019 was, easily, the warmest June in the period of instrumental temperature measurements, as shown in the figure above. June 2019 was +0.93°C, exceeding the prior record of +0.82°C in June 2016, both measured relative to the 1951-1980 base period. The contiguous U.S. and north-central Eurasia were cool, but… read more
Access Dr. Hansen’s new Communication “Oh, Germany!” here.
Access Dr. Hansen’s new Communication “Oh, Canada!” here.
Saving Earth 27 June 2019 James Hansen I must finish Sophie’s Planet this year, so I am writing few Communications. However, I make the draft of Chapters 31-34 available here, because my perspective of and conclusion about events in the 1980s differs from that of Nathaniel Rich in Losing Earth. I kept careful notes… read more
[Popular Science Summary] Implications of energy and CO2 emission changes in Japan and Germany after the Fukushima accident
Examining the human health and environmental consequences of post-Fukushima energy choices in Japan and Germany Pushker A. Kharecha and Makiko Sato Climate Science, Awareness, and Solutions Program, Columbia University Earth Institute June 2019 | contact: pak2111_AT_columbia_DOT_edu Near-term national energy pathways remain the largest root source of uncertainty in projections of 21st century global climate change…. read more
May 2019 Global Temperature Update May 2019 was the 3rd warmest May in the 140-year instrumental record at +0.87°C relative to 1951-1980 (2016 was +0.94°C; 2017 was +0.89°C). Most of U.S. was cool relative to 1951-1980, especially compared to the rest of the world. So far 2019 is the 3rd warmest year, but residual effects… read more
April 2019 Global Temperature Update April 2019 was 2nd warmest April in the 140-year instrumental record at +0.99°C relative to 1951-1980 (2016 was +1.07°C). So far 2019 is the 3rd warmest year (right graph), but residual global warming (which lags Niño3.4 several months) from the weak El Niño may make 2019 the 2nd warmest year…. read more
March 2019 Global Temperature Update March 2019 was the 3rd warmest March in the 140-year instrumental record, at +1.11°C relative to the 1951-1980 mean (2016 was +1.31°C, 2017 was +1.13°C). Tell that to people in the Northern and Midwestern United States, regions hit by brutal cold and heavy snow! The map of temperature anomalies shows… read more
February 2019 Global Temperature Update Global temperature in February 2019 (at +0.92°C relative to 1951-1980 base period) was third warmest February in the 140-year record since 1880. Warmest Februarys were 2016 (+1.34°C) and 2017 (+1.12°C). February temperature anomalies cover a huge range, as much as 6-8°C colder than the 1951-1980 mean in much of western… read more