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A study highlighted in a 2022 Nature article underscores the broader climate benefits of tropical forests beyond carbon storage. Tropical forests cool the planet by one-third of a degree through biophysical mechanisms such as humidifying the air and releasing cooling chemicals, in addition to their role in extracting carbon dioxide from the air.
Climate change has a direct impact on the productivity of the boreal forest, as well as health and regeneration. [15] As a result of the rapidly changing climate, trees show declines in growth at the southern limit of their range, [ 61 ] and are migrating to higher latitudes and altitudes (northward) to remain their climatic habitat, but some ...
Moreover, it suggests that standing tropical forests help cool the average global temperature by more than 1 °C or 1.8 °F. [24] [25] Deforestation of tropical forests may risk triggering tipping points in the climate system and of forest ecosystem collapse which would also have effects on climate change. [26] [27] [28] [29]
Almost 20 per cent of global carbon emissions are caused by deforestation, [3] and so curbing forest loss is a way to reduce global warming. Also the promotion of biofuels by governments concerned about global warming is driving forest clearance in some areas. To respond to these and other challenges, CIFOR devised a new strategy for a new era. [4]
25-50% of the rainfall in the Amazon basin comes from the forest, and if deforestation reaches 30-40% most of the Amazon basin will enter a permanent dry climate. [14] In another article published by Nature, it points out that tropical deforestation can lead to large reductions in observed precipitation. [15]
Studies have also shown that ongoing climate change is increasing the frequency and intensity of some climate extremes (e.g. droughts, heatwaves and hurricanes) which, in combination with other local human disturbances, are driving unprecedented negative ecological consequences for tropical forests around the world. [13]