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Global Climate Variability: A Brief Review of Climate Change from Palaeocene Epoch to Holocene Epoch

Deepa*, Rawat Manju, Linda A

By 2099, it is anticipated that the temperature will increase nearly 1.8ºC to 4ºC than pre industrial era. The larger areas will become arid as the section of land is in drought condition and is anticipated to increase up to 10% by 2050. The sea level is estimated to increase between 35 cm to 82 cm by 2100 .These trends indicate that the carrying capacity will be compromised due tothis climate change. Paleoclimate data can help us in assessing the climate sensitivity. Out of the many interglacial and glacial periods reviewed in this study, the mid-Pliocene climate is most suited for the future prediction of climate change. In the past, all the major climate change were due to natural causes like orbital forcing , radioactive of greenhouse gases, insolation and ocean water circulation. However, the current climate change is mainly due to the anthropogenic activities, which altered the climate at avery abrupt rate. This study helps in understanding the comparison between past climate change and present climate.