{"id":334141,"date":"2024-06-22T09:28:32","date_gmt":"2024-06-22T07:28:32","guid":{"rendered":"https:\/\/climatescience.press\/?p=334141"},"modified":"2024-06-22T09:28:34","modified_gmt":"2024-06-22T07:28:34","slug":"reminder-historical-natural-warming-rates-dwarf-modern-climate-change","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=334141","title":{"rendered":"Reminder: Historical Natural Warming Rates Dwarf Modern Climate Change"},"content":{"rendered":"\n
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From NoTricksZone<\/a><\/p>\n\n\n\n

By\u00a0Kenneth Richard<\/a>\u00a0<\/em><\/p>\n\n\n\n

Greenland has not warmed (net) in the last 90 years.<\/strong><\/p>\n\n\n\n

From 80,000 to 20,000 years ago Greenland warmed by 10-15 Kelvin within a span of \u201ca few decades\u201d 24 times (Kypke and Ditlevsen 2024<\/a><\/strong>).<\/p>\n\n\n\n

These abrupt warming periods occurred without concomitant CO2 concentration changes. And, of course, without human interference.<\/p>\n\n\n\n

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Image Source:\u00a0Kypke and Ditlevsen 2024<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n

In contrast, Greenland has not warmed (net) since the 1930s, or since CO2 levels rose from 310 ppm to 425 ppm (Mikkelsen et al., 2018<\/a><\/strong>).<\/p>\n\n\n\n

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Image Source:\u00a0Mikkelsen et al., 2018<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n

And Greenland warming is \u201cnot evident during the last two decades\u201d either (Matsumura et al., 2021<\/a><\/strong>).<\/p>\n\n\n

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Image Source:\u00a0Matsumura et al., 2021<\/a><\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n
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