Average global temperature
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Average Global Temperature: Historical and Recent Estimates
Global Mean Surface Temperature: Long-Term Averages
The annual average surface temperature of the world is about 14.0°C, with the Northern Hemisphere averaging 14.6°C and the Southern Hemisphere 13.4°C. The global mean temperature follows a seasonal cycle, peaking at 15.9°C in July and reaching a minimum of 12.2°C in January . More recent remote sensing data from 2001 to 2012 found the global mean surface temperature to be close to 14.35°C .
Global Temperature Change Over Time
Since the late 19th century, the Earth's average surface temperature has increased significantly. The global temperature has risen by about 1.2°C (with a standard error of 0.03°C) above the 1880–1900 average, with the years 2015–2020 being virtually certain to be the six warmest years on record . Other analyses estimate observed warming of about 1.1°C from 1850–1900 to 2010–2019, with human activities responsible for 0.9 to 1.3°C of this increase . Monthly temperature increments since 1881 show an average increase of 1.33°C, with "low" and "high" monthly increments of 0.9°C and 1.78°C, respectively .
Recent Decadal Warming Rates
The rate of global warming has accelerated in recent decades. From 1961 to 2020, the average rate of increase was about 0.08°C per decade, but since 1981, this rate has more than doubled to 0.18°C per decade . Over the past 30 years, the warming rate has been approximately 0.2°C per decade . For the period 2001–2020, global average land surface temperature increased at a rate of 0.26°C to 0.34°C per decade, with the Arctic warming at a rate 2.5–2.8 times the global average .
Regional Variations and Extremes
Warming is not uniform across the globe. The Arctic, Europe, and Russia have experienced statistically significant and accelerated warming, with some Arctic permafrost regions warming by more than 2°C per decade in the early 21st century 310. Some regions, such as parts of the Pacific Ocean, northern China, Mongolia, and others, have experienced cooling or less warming, highlighting the complexity of regional climate patterns .
Human Influence and Climate Change
The overwhelming majority of observed warming is attributed to human-induced factors, particularly greenhouse gas emissions. Natural factors have contributed negligibly to the observed temperature rise since the pre-industrial period . The current global temperature is likely as warm as the Holocene maximum and within about 1°C of the maximum temperature of the past million years .
Conclusion
The average global temperature is currently around 14.0–14.35°C, with a clear and accelerating warming trend observed over the past century. Human activities are the primary driver of this increase, with the most rapid warming occurring in recent decades and in specific regions such as the Arctic. The global temperature rise underscores the urgency of addressing climate change to meet international targets and mitigate further impacts 1234+5 MORE.
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