Blog - Page 2

Visit Dr. Hansen’s Webpage

January 2019 Global Temperature Update

by |February 15th, 2019

January 2019 Global Temperature Update Global temperature in January 2019 (at +0.88°C relative to 1951-1980 base period) was the fourth warmest January in the 140-year record since 1880.  The warmest Januarys were 2016 (+1.15°C), 2017 (+0.97°C) and 2007 (+0.94°C). Northeastern Canada was unusually cool (as much as 3.6°C below the 1951-1980 mean), but areas in… read more

Categories: Blog

Global Temperature in 2018 and Beyond

by |February 6th, 2019

Global Temperature in 2018 and Beyond 06 February 2019 James Hansen[1], Makiko Sato[1], Reto Ruedy[2],[3], Gavin A. Schmidt[3], Ken Lo[2],[3] [1] Earth Institute, Columbia University, New York, NY [2] SciSpace LLC, New York, NY [3] NASA Goddard Institute for Space Studies, New York, NY Abstract.  Global surface temperature in 2018 was the 4th highest in… read more

Categories: Blog

Monarchs 2018

by |January 31st, 2019

Looking for good news? Last summerwe were so pleased to see so many Monarchsin Pennsylvania and New York, more than we have seen in a decade. Eagerly awaited number of over-wintering population in Mexico confirms this impression. See updated graph below, and link to an article in the Guardian. This refers to the Monarchs in… read more

Categories: Blog

Climate Change in a Nutshell: The Gathering Storm

by |December 18th, 2018

Climate Change in a Nutshell: The Gathering Storm Please access Dr. Hansen’s new Communication “Climate Change in a Nutshell: The Gathering Storm” here.

Categories: Blog

November 2018 Global Temperature Update

by |December 17th, 2018

November 2018 Global Temperature Update November 2018 global temperature, at 0.77°C relative to the 1951-1980 base period, tied with 2010 as the fifth warmest November since reliable data began in 1880.  Most people, however, care more about the temperature where they live.  For people in North America, except those on the West Coast, November was… read more

Categories: Blog

Two Gentlemen

by |November 28th, 2018

Two Gentlemen 28 November 2018 James Hansen It was about two decades ago, I think, when Jeff Sachs introduced me to Gerry Lenfest.  It was at one of Jeff’s big shindigs where he brings in scores of important people from around the world to address big problems, matters that Jeff can somehow speak to eloquently… read more

Categories: Blog

October 2018 Global Temperature Update

by |November 15th, 2018

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

Categories: Blog

American Geophysical Union + Chinese Academy of Sciences

by |October 25th, 2018

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

Categories: Blog

From Xi’an with Love

by |October 18th, 2018

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

Categories: Blog

Global Warming Acceleration Plus Miscellaneous

by |October 15th, 2018

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

Categories: Blog