| Summary: | The Natural environment on the planet earth is different in different parts of the globe. On the earth, which parts of the earth will be forest? Which part will be grassland or desert? That is decided by the climate. So climate play a vital role in deciding earth’s environment. Climate is the continuously changing situation or condition of the atmosphere, usually considered on a time span that extends from minutes to weeks. Climate is the average condition of the lower atmospheric elements, and the associated properties of the underlying water or land, in a particular area, usually covering at least several years. Climate changeability is the variation around the average climatic condition, including seasonal variability and large scale regional cycles in atmospheric and ocean circulations. Climate change will continue to have a substantial effect on environment, ecosystems and organisms, though they are not effected equally. The glaciated Arctic region is one of the ecosystems most vulnerable to the effects of climate change, as it is heating at least double the rate of the worldwide average and melting ice sheets and glaciers. Changes are occur in ocean, the world’s ocean water absorbs approximate 30 percent of the (CO 2 ) carbon dioxide due to burning of fossil fuels that is released into the atmosphere. Due to this, the oceanic water is becoming more acidic, that affects marine life of aquatic animals. Due to thermal expansion sea levels are rising in addition to melting ice and glaciers, which creates greater risk to coastal regions. Climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be natural, such as through variations in the solar cycle. But since the 1800s, human activities have been the main driver of climate change, primarily due to burning fossil fuels like coal, oil and gas (United Nations).
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