Climate :
Climate is the average and variations of weather in a region over long periods of time. The climate of a location is affected by the presence of mountains, ice caps, as well nearby oceans and their associated currents. Locations on the western side of oceans exposed to warm water currents are relatively warm and humid, while deserts tend to exist on the east side of oceans where cold water currents contribute less warmth and moisture, leading to a more stable atmospheric profile. Mountain chains can cut off moisture streaming off an ocean or bay from reaching more inland locations. Climate zones can be defined using parameters such as temperature and rainfall to define desert, steppe, rain forest and polar ice cap regimes.
Paleoclimatology is the study and description of ancient climates using information from both non-biotic factors such as sediments found in lake beds and ice cores, and biotic factors such as tree rings and coral, and can be used to extend back the te
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