Berkeley Earth is a source of reliable, independent, non-governmental, and unbiased scientific data and analysis of the highest quality. Our continued mission and responsibility is to deliver and communicate our findings to the broadest possible audience.
New 6/12
May 2020 Temperature Update
May 2020 was the warmest May globally since record-keeping began in 1850. In the first five months of the year, the Earth has been marked by above average temperatures nearly everywhere, with especially extreme conditions across Asia.
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Analysis of COVID-19 and Global Weather Patterns
Warm, sunny weather may have some limited impact on the rate of spread, but in the absence of strong interventions, the pandemic is likely to continue spreading through the summer months in most parts of the world.
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2019 - 2nd Hottest Year on Record
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 than every other year that has been directly measured.
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Air Pollution
As air pollution becomes an increasingly salient global problem, Berkeley Earth becomes an increasingly important resource for timely, reliable, global data to help inform all sectors of the public, as well as to accurately inform...
Air Pollution
Global Warming Overview
Berkeley Earth leverages approximately five times more data than governmental sources. Our analyses are more complete, creating a better understanding of the extent to which other factors may have contributed to warming.
Global Warming

