Earth temperature trends
Pro Research Analysisby 
Searched over 200M research papers
Global Earth Temperature Trends: Warming Rates and Patterns
Global Average Temperature Increase and Recent Acceleration
Research consistently shows that Earth's average temperature has been rising, especially since the mid-20th century. Since the pre-industrial period, human activities have increased the global average temperature by about 1°C, with the current rate of warming at approximately 0.2°C per decade. Most of this recent warming is very likely due to human activities and is occurring at a rate unprecedented over decades to millennia . Studies using both satellite and ground-based data confirm a significant warming trend, with global land surface temperatures increasing at rates between 0.26°C and 0.34°C per decade from 2001 to 2020 4710.
Regional Differences in Warming Rates
The warming trend is not uniform across the globe. The Arctic, Europe, and Russia have experienced the most rapid warming, with the Arctic warming at a rate 2.5 to 2.8 times the global average, and some Arctic permafrost regions exceeding 2°C per decade in the early 21st century 47. High-latitude regions, especially those between 60°N and 90°N, show the highest rates of temperature increase, while regions such as New Zealand, equatorial South America, Southeast Asia, and Southern Africa have much lower rates, often below 0.15°C per decade . More than 80% of the global land surface has shown a significant temperature increase since the 1980s .
Maximum, Minimum, and Diurnal Temperature Range Trends
From 1950 to 2004, minimum temperatures increased more rapidly than maximum temperatures, leading to a decrease in the diurnal temperature range (DTR). However, from 1979 to 2004, both minimum and maximum temperatures increased at similar rates, resulting in a muted DTR trend. Almost all regions experienced increases in both minimum and maximum temperatures during these periods .
Surface and Tropospheric Temperature Trends
Satellite data from 1978 to 2002 show a global tropospheric temperature increase of about 0.22°C to 0.26°C per decade, which aligns with surface station data . However, there are small but statistically significant differences between surface and lower troposphere warming rates, which are best explained by a combination of human-induced factors and volcanic aerosols, rather than natural variability alone .
Causes of Temperature Trends: Human Influence and Natural Variability
The overall pattern of warming, especially the globally uniform secular trend, strongly suggests a response to the buildup of greenhouse gases in the atmosphere 36. While natural variability, such as multidecadal ocean oscillations, can contribute to short-term fluctuations, up to one third of the late 20th-century warming may be attributed to these natural cycles, with the majority due to human activities . The regional and zonal distribution of warming is inconsistent with increased solar heating but aligns with the effects of increased carbon dioxide and other greenhouse gases 136.
No Recent Global Warming Hiatus
Contrary to some claims, there has been no global warming hiatus since the late 1990s. The warming trend has continued, with 93% of countries showing significant warming since the 1980s, and nearly half of the countries experiencing more than 1°C of warming .
Conclusion
Earth's temperature trends show a clear and significant warming pattern, with the most rapid increases occurring in the Arctic and other high-latitude regions. The majority of this warming is attributed to human activities, particularly the emission of greenhouse gases. While natural variability plays a role in short-term fluctuations, the long-term trend is dominated by anthropogenic influences, and the warming continues without evidence of a recent pause.
Sources and full results
Most relevant research papers on this topic