2023 was the hottest year on record, NASA and NOAA say | Space

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It’s official: 2023 was the hottest year on record.

On Friday (Jan. 12), climate scientists from NASA and NOAA unveiled data showing that temperatures continue to rise at shocking rates, contributing to severe climate-driven weather events worldwide. NOAA’s and NASA’s analyses did not use satellite data or weather forecasts. Instead, their analysis used surface data that included sea surface temperatures measured by ships and buoys and air temperatures collected by terrestrial weather stations to track climate change.

What those analyses found has scientists shocked. “The findings are astounding,” said Sarah Kapnick, chief scientist at NOAA. “2023 was an extraordinarily warm year that produced many costly climate driven weather events here in the United States and worldwide.”

Gavin Schmidt, director, NASA’s Goddard Institute for Space Studies, added that the different in average temperatures by which 2023 beat previous record years of 2016 and 2020 is well above estimates of measurement uncertainty, making scientists confident in declaring 2023 as the hottest year on record. “None of those uncertainties are large enough to change the bottom line of what we’re talking about,” Schmidt added.” And that that’s the long term trend and the record walks that we’re seeing in 2023.

“And so, we’re looking at this and we’re frankly, astonished.”

Related: 10 devastating signs of climate change we see from space

This map depicts global temperature anomalies for meteorological summer in 2023 (June, July, and August). It shows how much warmer or cooler different regions of Earth were compared to the baseline average from 1951 to 1980. (Image credit: NASA)

Schmidt added that the record temperatures are in line with the agency’s predictions for how changes in greenhouse gases and other forces would impact global temperatures.

Russ Vose, chief of the analysis and synthesis branch at NOAA’s National Centers for Environmental Information, elaborated on the changes in measured levels of…

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