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One of the biggest and most common effects of global climate change is drought. As climate warming and precipitation change, the possibility of drought increases. These droughts do not occur anywhere, but where it happens, it can be much more serious than before. ForestGEO found that it is a bigger, older tree - the most carbon-rich tree - and when their local ecosystems are depleted they tend to suffer more. It is because it is more difficult to raise the water to a very high place. Crowns of big trees will also be higher and higher, so they will be affected by the high temperature of the sun, high wind speed and low humidity. Small trees are protected by surrounding trees
Drought occurs in almost all kinds of climates. According to the National Climate Data Center, drought is second only to hurricanes in all weather related phenomena that may have a serious economic impact on the United States. However, unlike hurricanes, the definition of drought is much more difficult, as hurricanes can be easily identified and classified directly by wind speed. In the 1980s, two researchers published more than 150 drought definitions to the International Journal of Water. In order to measure droughts, scientists categorized these definitions into four basic categories: meteorology, hydrology, agriculture, and socioeconomics. The first three accounts treat droughts as physical phenomena. The last category deals with drought as a supply-demand problem due to water shortage.