气候变化领域集成服务门户(CCPortal): 300 years of sclerosponge thermometry shows global warming has exceeded 1.5 °C

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DOI	10.1038/s41558-023-01919-7
	300 years of sclerosponge thermometry shows global warming has exceeded 1.5 °C
	Mcculloch, Malcolm T.; Winter, Amos; Sherman, Clark E.; Trotter, Julie A.
发表日期	2024
ISSN	1758-678X
EISSN	1758-6798
英文摘要	Anthropogenic emissions drive global-scale warming yet the temperature increase relative to pre-industrial levels is uncertain. Using 300 years of ocean mixed-layer temperature records preserved in sclerosponge carbonate skeletons, we demonstrate that industrial-era warming began in the mid-1860s, more than 80 years earlier than instrumental sea surface temperature records. The Sr/Ca palaeothermometer was calibrated against 'modern' (post-1963) highly correlated ( R (2) = 0.91) instrumental records of global sea surface temperatures, with the pre-industrial defined by nearly constant (<+/- 0.1 degrees C) temperatures from 1700 to the early 1860s. Increasing ocean and land-air temperatures overlap until the late twentieth century, when the land began warming at nearly twice the rate of the surface oceans. Hotter land temperatures, together with the earlier onset of industrial-era warming, indicate that global warming was already 1.7 +/- 0.1 degrees C above pre-industrial levels by 2020. Our result is 0.5 degrees C higher than IPCC estimates, with 2 degrees C global warming projected by the late 2020s, nearly two decades earlier than expected.
英文关键词	SEA-SURFACE TEMPERATURE; HIGH-RESOLUTION SR/CA; CERATOPORELLA-NICHOLSONI; MIXED-LAYER; HISTORY; CALIBRATION; RECORDS; ICE
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001159044100002
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282296
作者单位	University of Western Australia; University of Western Australia; University of Western Australia; Indiana State University; University of Puerto Rico; University of Puerto Rico Mayaguez
推荐引用方式 GB/T 7714	Mcculloch, Malcolm T.,Winter, Amos,Sherman, Clark E.,et al. 300 years of sclerosponge thermometry shows global warming has exceeded 1.5 °C[J],2024.
APA	Mcculloch, Malcolm T.,Winter, Amos,Sherman, Clark E.,&Trotter, Julie A..(2024).300 years of sclerosponge thermometry shows global warming has exceeded 1.5 °C.Nature Climate Change.
MLA	Mcculloch, Malcolm T.,et al."300 years of sclerosponge thermometry shows global warming has exceeded 1.5 °C".Nature Climate Change (2024).