October 2018 was the second warmest October since 1880. At +0.99°C (relative to 1951-1980) it trailed only October 2015 (+1.08°C). Extreme regional temperature anomalies in the Northern Hemisphere (see map), as much as +6-8°C in Siberia and minus 2-3°C in North America were evidently related to a wind anomaly carrying warm air in a northeasterly… read more
American Geophysical Union + Chinese Academy of Sciences 24 October 2018 James Hansen I was privileged to give one of the keynote talks at the first joint meeting of the American Geophysical Union (AGU) and the Chinese Academy of Sciences (CAS). The meeting was timely and propitious. Both of these nations and the world as… read more
From Xi’an with Love 19 October 2018 James Hansen Stop! No need to read this discussion of global warming acceleration, if you read my 15 October Communication of that title. I edited that Communication for clarity on a flight to China, but thanks in part to a skirmish between Google and China I was unable… read more
Global warming acceleration becomes evident by connecting global temperatures at successive La Nina minima. Global Warming Acceleration Plus Miscellaneous 15 October 2018 James Hansen Climate models indicate that at least a weak El Nino will begin this (Northern Hemisphere) winter; observations show that warming in the tropical Pacific has begun. This implies that the… read more
September 2018 Global Temperature Update September 2018 global temperature, at 0.75°C relative to the 1951-1980 base period, was the sixth warmest September (tied with 2005) since reliable measurements began in 1880, with some very warm and very cold areas in the northern high latitudes (left side of the figure on the top). Most of Europe and… read more
Dr. Hansen’s new Communication “Taiwan Charts: CO2 Control Knob” is available in PDF.
Dr. Hansen’s discusses hurricanes in the East Coast of the US including Hurricane Florence in his new communication “Global Warming and East Coast Hurricanes” is available in PDF.
A Monarch Resurgence?? available in PDF 04 September 2018 James Hansen
Cost of Carbon Capture: Can Young People Bear the Burden? available in PDF 17 August 2018 James Hansen
July 2018 Global Temperature Update available in PDF