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2023's June-July-August season was the warmest on record globally by a large margin, as El Niño conditions continued to develop. [16] September 2023 was the warmest September on record globally, with an average surface air temperature 0.5 °C above the temperature of the previous warmest September (2020). [17]
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 ...
By early March 2024, pockets of below average Sea Surface Temperature SST Anomalies pierced the surface in the equatorial East Pacific, a clear sign that the El Niño event was in full retreat. [23] Several severe thunderstorms bringing high winds and pea-sized hail hit Los Angeles, California, causing strong flooding in streets. [24]
The year 2023 had already been confirmed as the hottest on record, but new data shows an alarming rise in heating towards the Paris Agreement limit. World is dangerously close to a global warming ...
Changes in surface air temperature over the past 50 years. [1] The Arctic has warmed the most, and temperatures on land have generally increased more than sea surface temperatures. Earth's average surface air temperature has increased almost 1.5 °C (about 2.5 °F) since the Industrial Revolution. Natural forces cause some variability, but the ...
Storm Daniel, the deadliest weather event of the year, soon after landfall in Libya. The following is a list of weather events that occurred on Earth in the year 2023. The year saw a transition from La Niña to El Niño, with record high global average surface temperatures.
is Earth's average albedo, measured to be 0.3. [11] [12] is Earth's average surface temperature, measured as about 288 K as of year 2020 [13] is the effective emissivity of Earth's combined surface and atmosphere (including clouds). It is a quantity between 0 and 1 that is calculated from the equilibrium to be about 0.61.
The global average covers 97-98% of Earth's surface, excluding only latitudes above +85 degrees, below -85 degrees and, in the cases of TLT and TMT, some areas with land above 1500 m altitude. The hemispheric averages are over the northern and southern hemispheres 0 to +/-85 degrees. The gridded data provide an almost global temperature map. [3]