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Projected global surface temperature changes relative to 1850–1900, based on CMIP6 multi-model mean changes. The IPCC Sixth Assessment Report defines global mean surface temperature (GMST) as the "estimated global average of near-surface air temperatures over land and sea ice, and sea surface temperature (SST) over ice-free ocean regions, with changes normally expressed as departures from a ...
The red curve shows measured global mean temperature, according to HadCRUT4 data from 1850 to 2013. Hockey stick graphs present the global or hemispherical mean temperature record of the past 500 to 2000 years as shown by quantitative climate reconstructions based on climate proxy records.
Thumbnail: The first frame of this video is the 2000+-year chart. You can make that frame the thumbnail by using the thumbtime=0 specfication when invoked: [[File:20200320 ~140 and ~2000 year global average temperature charts (full speed).webm |thumb |upright=1.5 |thumbtime=0 | (caption)]]. Otherwise, the default thumbnail will prevail.
This is a list of countries and sovereign states by temperature. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group , derived from raw gridded climatologies from the Climatic Research Unit .
Summer 2023 saw record-breaking heat, and, according to the Centers of Disease Control and Prevention, 90% of the 120,000 heat-related emergency room visits in the United States last year took ...
Some discrepancies between the UAH temperature measurements and temperatures measured by other groups remain, with (as of 2019) the lower troposphere temperature trend from 1979-2019 calculated as +0.13 °C/decade by UAH, [7] [8] and calculated at +0.208 °C/decade by RSS.
GMST may refer to: Global mean surface temperature, sometimes abbreviated as Global surface temperature (GST) Greenwich Mean Sidereal Time, ...
For each country-level #ShowYourStripes graphic (Hawkins, June 2019), the average temperature in the 1971–2000 reference period is set as the boundary between blue (cooler) and red (warmer) colours, the colour scale varying +/- 2.6 standard deviations of the annual average temperatures between 1901 and 2000.