Earth's Energy Imbalance: Confirmation and Implications

Our climate model, driven mainly by increasing human-made greenhouse gases and aerosols, among other forcings, calculates that Earth is now absorbing 0.85 ± 0.15 watts per square meter more energy from the Sun than it is emitting to space. This imbalance is confirmed by precise measurements of incre...

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Bibliographic Details
Published in:Science
Main Authors: Hansen, James, Nazarenko, Larissa, Ruedy, Reto, Sato, Makiko, Willis, Josh, Del Genio, Anthony, Koch, Dorothy, Lacis, Andrew, Lo, Ken, Menon, Surabi, Novakov, Tica, Perlwitz, Judith, Russell, Gary, Schmidt, Gavin A., Tausnev, Nicholas
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2005
Subjects:
Ice Sheet
Online Access:http://dx.doi.org/10.1126/science.1110252
https://www.science.org/doi/pdf/10.1126/science.1110252
Description
Summary:Our climate model, driven mainly by increasing human-made greenhouse gases and aerosols, among other forcings, calculates that Earth is now absorbing 0.85 ± 0.15 watts per square meter more energy from the Sun than it is emitting to space. This imbalance is confirmed by precise measurements of increasing ocean heat content over the past 10 years. Implications include (i) the expectation of additional global warming of about 0.6°C without further change of atmospheric composition; (ii) the confirmation of the climate system's lag in responding to forcings, implying the need for anticipatory actions to avoid any specified level of climate change; and (iii) the likelihood of acceleration of ice sheet disintegration and sea level rise.

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