It's official, 2023 was the hottest year on record. Temperatures worldwide, averaged across last year, were 1.48C, or 2.66F, higher than they were in the second half of the 19th century, The Copernicus ECMWF team announced today. The BBC drew up some really great graphics to represent the data.
December was the 7th consecutive month of record-shattering global temperature. One group of young scientists thinks it was driven by the combination of a moderately strong El Nino and a large decrease in Earth’s albedo (reflectivity). The decreased albedo is spurred by reduced atmospheric aerosols and the reduction of sea ice. They make the case that the 1.5°C global warming ceiling has been passed for all practical purposes because the large planetary energy imbalance ensures that global temperature will continue to increase for some months even if we encounter a La Nina. They describe the changes as “gobsmackingly bananas.”
Not only was the air temperature the hottest since 1850 when records started being kept, but the sea surface temperature also broke records, as did Antarctic sea ice. In fact, the world's ocean surface has been on an unbroken streak of record-breaking days since early May and has continued to increase dramatically through the first week of the new year.
https://twitter.com/i/status/1744526632201662685
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