June 2020 Temperature Update

Revision to prior months Finally, we wish to make note of an unusually large retroactive change to previous temperature estimates. In performing temperature field reconstructions, we aim to use all available data; however, weather data from some stations is not immediately available. This routinely results in retrospective adjustments to prior months. Usually such adjustments are […]

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May 2020 Temperature Update

As noted above, unusual recent conditions have shifted the current projection for 2020 to be significantly higher than previous projections issued earlier this year.

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April 2020 Temperature Update

As noted above, the current projection for 2020 has shifted significantly higher than previous projections. The resulting ~60% chance of a new record is similar to projections that others have issued for 2020.

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Global Temperature Report for 2019

Berkeley Earth, a California-based non-profit research organization, has been preparing independent analyses of global mean temperature changes since 2013. The following is our report on global mean temperature during 2019. We conclude that 2019 was the second warmest year on Earth since 1850. The global mean temperature in 2019 was colder than 2016, but warmer […]

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November 2019 Temperature Update

The following is a summary of global temperature conditions in Berkeley Earth’s analysis of November 2019. Globally, November 2019 was the second warmest November since records began in 1850. The global mean temperature was 0.88 ± 0.05 °C above the 1951 to 1980 average.  This is equivalent to being 1.26 ± 0.07 °C above the 1850 to 1900 average, […]

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3rd-Party Data Visualizations

The following is a selected list of third-party data visualizations that have used data from Berkeley Earth. Climate Data Data explorer map of past and future temperature change produced by Carbon Brief. Local changes in the number of hot days produced by The New York Times. Temperature change in major cities produced by the BBC. […]

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October 2019 Temperature Update

The following is a summary of global temperature conditions in Berkeley Earth’s analysis of October 2019. Globally, October 2019 was the second warmest October since records began in 1850. The global mean temperature was 0.99 ± 0.06 °C above the 1951 to 1980 average.  This is equivalent to being 1.38 ± 0.07 °C above the 1850 to 1900 average […]

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Global Mean Temperature Anomaly 1850-2018

Global Temperature Report for 2018

Berkeley Earth, a California-based non-profit research organization, has been preparing independent analyses of global mean temperature changes since 2013. The following is our report on global mean temperature during 2018. We conclude that 2018 was likely the fourth warmest year on Earth since 1850. Global mean temperature in 2018 was colder than 2015, 2016, and […]

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Global Temperature Report for 2017

Berkeley Earth, a California-based non-profit research organization, has been preparing independent analyses of global mean temperature changes since 2013. The following is our report on global mean temperature during 2017. We conclude that 2017 was likely the second warmest year on Earth since 1850. Global mean temperature in 2017 was 0.03 °C (0.05 °F) warmer […]

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