{"id":50345,"date":"2024-05-14T15:21:35","date_gmt":"2024-05-14T15:21:35","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/05\/14\/summer-2023-was-the-northern-hemispheres-hottest-in-2000-years-study-finds\/"},"modified":"2024-05-14T15:21:35","modified_gmt":"2024-05-14T15:21:35","slug":"summer-2023-was-the-northern-hemispheres-hottest-in-2000-years-study-finds","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/05\/14\/summer-2023-was-the-northern-hemispheres-hottest-in-2000-years-study-finds\/","title":{"rendered":"Summer 2023 Was the Northern Hemisphere\u2019s Hottest in 2,000 Years, Study Finds"},"content":{"rendered":"
\"Summer<\/div>


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The summer of 2023 was exceptionally hot. Scientists have already established that it was the warmest Northern Hemisphere summer<\/a> since around 1850, when people started systematically measuring and recording temperatures.<\/p>\n

Now, researchers say it was the hottest in 2,000 years, according to a new study published in the journal Nature<\/a> that compares 2023 with a longer temperature record across most of the Northern Hemisphere. The study goes back before the advent of thermometers and weather stations, to the year A.D. 1, using evidence from tree rings.<\/p>\n

\u201cThat gives us the full picture of natural climate variability,\u201d said Jan Esper, a climatologist at Johannes Gutenberg University in Mainz, Germany and lead author of the paper.<\/p>\n

Extra greenhouse gases in the atmosphere from the burning of fossil fuels are responsible for most of the recent increases in Earth\u2019s temperature, but other factors \u2014 including El Ni\u00f1o<\/a>, an undersea volcanic eruption and a reduction in sulfur dioxide aerosol pollution from container ships \u2014 may have contributed to the extremity of the heat last year.<\/p>\n<\/div>\n