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Climate change ranked third, followed by pollution and invasive species. The report concluded that global warming of 2 °C (3.6 °F) over the preindustrial levels would threaten an estimated 5% of all the Earth's species with extinction even in the absence of the other four factors, while if the warming reached 4.3 °C (7.7 °F), 16% of the ...
A first peer-reviewed article about climate restoration was published in April 2018 by the Rand Corporation. [8] The analysis "examines climate restoration through the lens of risk management under conditions of deep uncertainty, exploring the technology, economic, and policy conditions under which it might be possible to achieve various climate restoration goals and the conditions under which ...
Novel species may emerge; in particular taxa that prosper in human-dominated ecosystems may rapidly diversify into many new species. Microbes are likely to benefit from the increase in nutrient-enriched environmental niches. No new species of existing large vertebrates are likely to arise and food chains will probably be shortened. [5] [24]
[166] [167] [168] One well known example of a species affected is the polar bear, whose habitat in the Arctic is threatened. [169] Algae can also be affected when it grows on the underside of sea ice. [170] Warm-water coral reefs are very sensitive to global warming and ocean acidification.
Boreal forests, also known as taiga, are warming at a faster rate than the global average. [14] leading to drier conditions in the Taiga, which leads to a whole host of subsequent issues. [15] Climate change has a direct impact on the productivity of the boreal forest, as well as health and regeneration. [15]
The environmental conditions required by some species, such as those in alpine regions may disappear altogether. The result of these changes is likely to be a rapid increase in extinction risk. [20] Adaptation to new conditions may also be of great importance in the response of plants. [21]
Snowfall is declining across the globe, which also illustrates an alarming trend for global freshwater supply, as temperatures rise because of human-caused climate change. New maps show where ...
[50]: 266 Scenarios that limit global warming to 1.5 °C typically project the large-scale use of carbon dioxide removal methods over the 21st century. [51]: 1068 [52]: 17 There are concerns about over-reliance on these technologies, and their environmental impacts.