Warming of the ocean accounts for about ninety three% of the rise in the Earth’s vitality stock between 1971 and 2010 (excessive confidence), with warming of the upper (zero to seven hundred m) ocean accounting for about 64% of the entire. ^ IPCC SR15 Abstract for Policymakers 2018 , p. 7:Future local weather-related risks (…) are larger if world warming exceeds 1.5 °C (2.7 °F) before returning to that stage by 2100 than if international warming steadily stabilizes at 1.5°C. Over time, nevertheless, the deep ocean layers can even heat up, till lastly, after hundreds of years, the climate will settle down at a higher average ocean and atmospheric temperature.
^ IPCC AR5 WG1 Ch5 2013 , pp. 389, 399-four hundred: “5: Data from Paleoclimate Archives: The PETM round fifty five.5-fifty five.three million years ago was marked by.. world warming of four °C to 7 °C…. Deglacial world warming occurred in two predominant steps from 17.5 to 14.5 ka thousand years in the past and 13.0 to 10.0 ka. This conclusion just isn’t drawn from anybody supply of knowledge however is predicated on multiple lines of proof, together with three worldwide temperature datasets showing almost identical warming developments as well as quite a few different independent indicators of world warming (e.g. rising sea ranges, shrinking Arctic sea ice). ^ IPCC AR5 WG1 Summary for Policymakers 2013 , p. 4: Warming of the climate system is unequivocal, and because the 1950s, lots of the observed changes are unprecedented over a long time to millennia.