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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 temperature on land rose by 1.59 °C while over the ocean it rose by 0.88 °C. [3] In 2020 the temperature was 1.2 °C above the pre-industrial era. [4] In September 2023 the temperature was 1.75 °C above pre-industrial level and during the entire year of 2023 is expected to be 1.4 °C above it. [5]
There is good agreement on the overall evolution of global temperatures and year-to-year variability. Dataset anomalies are calculated relative to a 1981 to 2010 baseline and offset by 0.69°C, which is the best estimate difference for that period from the 1850-1900 average given in the IPCC sixth assessment report."
Top chart: Earth's climate has cycled between ice ages and warm interglacial periods, with each cycle taking tens of thousands of years or more. Middle chart: Global average temperature was in a cooling trend for thousands of years before fossil fuel based industrialization. Since then, it has increased about a full 1°C—in a time period less ...
The graph includes yearly average global temperature both for data from Met Stations and for combined Land-Ocean temperature, with 10 year moving averages overlayed. Licensing This figure was produced by Leland McInnes using gnuplot and Inkscape and is licensed under the GFDL .
The European Union’s Copernicus Climate Change Service confirmed the record Friday, announcing that according to its analysis, 2024 was the first full year in which global temperatures exceeded ...
The global temperature averaged over the past year is more than 1.5 degrees Celsius (2.7 degrees Fahrenheit) ... Before last year, the previous recorded hottest day was in 2016, when average ...
HadCRUT is the dataset of worldwide monthly instrumental temperature records formed by combining the sea surface temperature records compiled by the Hadley Centre of the UK Met Office and the land surface air temperature records compiled by the Climatic Research Unit (CRU) of the University of East Anglia.