global temperature history
Thermometer readings around the world have been rising since the Industrial Revolution, and the causes are a blend of human activity and some natural variability—with the preponderance of evidence saying humans are mostly responsible.
These in situ measurements are analyzed using an algorithm that considers the varied spacing of temperature stations around the globe and urban heat island effects that could skew the conclusions. Atmosphere Using proxy indicators for quantitative estimates of past temperature recordhad developed sporadically from the 1930s onwards, and Bradley & Jones 1993 harvnb error: no target: CIT…
As the present article is oriented toward recent temperatures, there is a focus here on events since the retreat of the Pleistocene glaciers.
J. Geophys. Committee on Surface Temperature Reconstructions for the Last 2,000 Years, Temperature record of the past 1000 years, "Global Temperature Report: January 2019", http://www.ncdc.noaa.gov/temp-and-precip/msu/nature02524-UW-MSU.pdf, "Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia", "A Pliocene-Pleistocene stack of 57 globally distributed benthic d, NASA's Goddard Institute for Space Studies, Surface Temperature Reconstructions for the last 2,000 Years, Intergovernmental Panel on Climate Change (IPCC), United Nations Framework Convention on Climate Change, Reducing emissions from deforestation and forest degradation, https://en.wikipedia.org/w/index.php?title=Global_temperature_record&oldid=984046429, History of climate variability and change, Wikipedia indefinitely semi-protected pages, Articles with dead external links from December 2019, Articles with permanently dead external links, Creative Commons Attribution-ShareAlike License, This page was last edited on 17 October 2020, at 20:53. Clark, and A.C. Northern Hemisphere temperatures reconstructed by statistically combining long-term fluctuations Global warming preceded by increasing carbon dioxide concentrations during the last pp. GISS Surface Temperature Analysis: 339. pp. New global temperature data is updated automatically, every month. A one-degree global change is significant because it takes a vast amount of heat to warm all the oceans, atmosphere, and land by that much. [12] Such records can be used to infer historical temperatures, but generally in a more qualitative manner than natural proxies. 80 records span the last deglaciation and 73 records cover the Holocene. You may enjoy this software for free under a, A paleoclimatic temperature record for researchers and educators. Choose from 4 color themes to match your website's look and feel. This is believed to be a primary cause of the collapse of the Old Kingdom of Egypt.[13]. Both the University of Alabama in Huntsville (UAH) and the private, NASA funded, corporation Remote Sensing Systems (RSS) find an upward trend. Greenhouse gases (accessible from the graph menu - top right of graph) are also updated automatically. Shakun, J.D., P.U.
Recent evidence suggests that a sudden and short-lived climatic shift between 2200 and 2100 BCE occurred in the region between Tibet and Iceland, with some evidence suggesting a global change. They depict how much various regions of the world have warmed or cooled when compared with a base period of 1951-1980. Moberg, A., D.M. NASA’s temperature analyses incorporate surface temperature measurements from more than 20,000 weather stations, ship- and buoy-based observations of sea surface temperatures, and temperature measurements from Antarctic research stations. Gradual changes in Earth's climate of this kind have been frequent during the Earth's 4500 million year existence and most often are attributed to changes in the configuration of continents and ocean sea ways. Ruedy, and D. Zyss, 2019: Improvements in the GISTEMP uncertainty model. 433, pp. Prior to 1880, global temperature was reconstructed from ice cores and sea sediment data.
Heat dataset degrades to approximately 10 records by 800,000 years ago. But aerosol cooling is more immediate, while greenhouse gases accumulate slowly and take much longer to leave the atmosphere. term variations recorded by 7 tree-rings series.
There are numerous estimates of temperatures since the end of the Pleistocene glaciation, particularly during the current Holocene epoch.
Nature, Vol. The reconstruction was calibrated by matching its mean 12, 6307-6326, doi:10.1029/2018JD029522. The global temperature record shows the fluctuations of the temperature of the atmosphere and the oceans through various spans of time. deglaciation.
Detailed information exists since 1850, when methodical thermometer-based records began.
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