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In comparison, the global mean surface air temperature (GSAT) is the "global average of near-surface air temperatures over land, oceans and sea ice. Changes in GSAT are often used as a measure of global temperature change in climate models." [10]: 2231 Global temperature can have different definitions. There is a small difference between air ...
The IPCC Fifth Assessment Report (AR5 WG1) of 2013 examined temperature variations during the last two millennia, and concluded that for average annual Northern Hemisphere temperatures, "the period 1983–2012 was very likely the warmest 30-year period of the last 800 years (high confidence) and likely the warmest 30-year period of the last ...
800,000-, 2,000-, 139-year global average temperature —— Further includes an 800,000 year chart Temperature reconstruction last two millennia —— source of top chart 20190727 COMPARE warming stripes - Global vs Caribbean 1910-2018 (ref 1910-2000) —— top warming stripes graphic (global) uses same data (NOAA) as the bottom chart
Data released by the Copernicus Climate Change Service last week showed that March of 2023 was the planet’s second-warmest month in recorded history, registering average global temperatures 0.92 ...
Annual data comprises the arithmetic average of twelve month's data from the NOAA/NCEI source. 2023 data in Version 1 is through October 2023. Source of data for series of charts titled "mm Month - Percent of global area at temperature records - Global warming - NOAA.svg": — Source's title/subtitle: "Mean Monthly Temperature Records Across ...
The average global temperature for the 12-month period to the end of May was 1.63 degrees Celsius (2.9 degrees Fahrenheit) above the pre-industrial average - making it the warmest such period ...
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."
Including April, the world's average temperature was the highest on record for a 12-month period - 1.61 degrees Celsius above the average in the 1850-1900 pre-industrial period.