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Cooler climate causes Carboniferous rainforest collapse: 251.9: Permian–Triassic extinction event: 199.6: Triassic–Jurassic extinction event, causes as yet unclear 66: Perhaps 30,000 years of volcanic activity form the Deccan Traps in India, or a large meteor impact. 66
A related phenomenon driven by climate change is woody plant encroachment, affecting up to 500 million hectares globally. [218] Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. [219] The size and speed of global warming is making abrupt changes in ecosystems more likely ...
In particular, climate change art has been used both to make scientific data more accessible to non-scientists and to express people's fears. [13] Some research indicates that climate change art is not particularly effective in changing peoples views, though art with a "hopeful" message gives people ideas for change. [13]
Google Trends data shows that, following the 2006 release of An Inconvenient Truth, there was an increase in the number of Google searches for the term climate crisis, which Gore often used instead of the more neutral climate change. [100] Also graphed: searches for climate emergency.
One historical long-term correlation between solar activity and climate change is the 1645–1715 Maunder minimum, a period of little or no sunspot activity which partially overlapped the "Little Ice Age" during which cold weather prevailed in Europe. The Little Ice Age encompassed roughly the 16th to the 19th centuries.
The cover of the "Climate Issue" (fall 2020) of the Space Science and Engineering Center's Through the Atmosphere journal was a warming stripes graphic, [91] and in June 2021 the WMO used warming stripes to "show climate change is here and now" in its statement that "2021 is a make-or-break year for climate action". [56]
The role of solar activity in climate change has also been calculated over longer time periods using "proxy" datasets, such as tree rings. [193] Models indicate that solar and volcanic forcings can explain periods of relative warmth and cold between AD 1000 and 1900, but human-induced forcings are needed to reproduce the late-20th century warming.
The biggest changes in EEI arise from changes in the composition of the atmosphere through human activities, thereby interfering with the natural flow of energy through the climate system. [1] The main changes are from increases in carbon dioxide and other greenhouse gases, that produce heating (positive EEI), and pollution.