Introduction to modern climate change
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Climate change is the variability of the climate system that includes the atmosphere, the biogeochemical cycles (Carbon cycle, Nitrogen cycle and Hydrological cycle), the land surface, ice and the biotic and abiotic components of the planet earth. Significant impact of climate change is seen in the form of rise in temperature called as global warming. Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) are the primary greenhouse gases (GHGs) mainly responsible for the global warming and climate change. These GHGs have drawn lot of attention due to their significant role in the global warming potential. Intergovernmental Panel on Climate Change (IPCC) suggested to stop global warming at 1.5oC above preindustrial levels as warming beyond this level might lead to heat extremes, alter insect and plant phenology (Phenological shifts) and more occurrence of vector borne diseases. Climate change is the topic of interest in all fields of life starting from social science and going to the applied science. Global climate cycles and world food production systems are under threat due to the recent climate extreme events. These events include heat waves and change in the rainfall patterns. Thus, risk reduction intervention in the form of mitigation and adaptation is required to minimize the impacts of climate change. Mitigation option includes understanding the present and future components of the climate system and interaction among them through coupled modeling system i.e. Global Circulation Model (GCM). Finally, global issue of climate change could be addressed by taking worldwide cooperation and action and adopting sustainable measures like use of alternative energy sources. The visible benefit on recovery of climate has been seen recently through global lockdown against coronavirus disease 2019 (COVID-19) pandemic
Link to resourcehttps://doi.org/10.1016/j.scitotenv.2020.139397
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