harmful effects of climate change to land use
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Agriculture is particularly sensitive to climate change. As the relative outputs of agriculture and forestry are altered by temperature increases, land productivity across the planet will be altered. Over the next several decades, warmer weather in low-latitude regions will increase the likelihood of drought. Midlatitude regions with cool weather will benefit from warming and more precipitation. High-latitude regions will be able to increase their agricultural outputs due to higher temperatures. Yet damages to low-latitude areas may spread to the midlatitudes by the end of the century if current greenhouse gas emissions are unabated.
Forestry will be affected by possible shifts of ecosystems to higher latitudes and elevations, causing the replacement or dieback of selected timber types. Although ecosystem shifts may lead to the extinction of some plants and animals, forestland will expand in most climate scenarios for the next century. Rising temperatures will also speed up the hydrological cycle, leading to more evaporation and rain. Because runoff will decrease and the location of increased precipitation is unclear, most studies predict that water supplies in most low-latitude regions will fall.