Global Temperature in 2018 and Beyond

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 the period of instrumental measurements in the Goddard Institute for Space Studies (GISS) analysis.  The 2018 global temperature was +1.1°C (~2°F) warmer than in the 1880-1920 base period; we take that base period as an estimate of ‘pre-industrial’ temperature.  The four warmest years in the GISS record all occur in the past four years, and the 10 warmest years are all in the 21st century.  We also discuss the prospects for near-term global temperature change.

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