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Q. 2016 was the warmest year: Comment on increasing global temperature in a last three years.
Jan 21, 2017 Related to : GS Paper-3

Ans :

Introduction-

Recently USA’s two leading science agencies jointly declared that, 2016 was the hottest year on record, surpassing the previous record set just last year, which itself had topped a record set in 2014. 2016 was the warmest year on the instrumental record since the late 19th century, and the hottest of three record-breaking years in a row.

Analysis-

  • The rise in temperature as being largely driven by increased carbon dioxide and other human-made emissions into the atmosphere. The growing temperature was aggravated by the El Nino phenomenon of 2015-16.
  • The global warming pattern must be seen in the context of declining sea ice cover in the Arctic, compounding the loss of ice sheets in Greenland and the Antarctic. 
  • In the Arctic, which is witnessing a decline in the extent of sea ice cover in the lowest month at the rate of about 13% every decade, melting creates a vicious circle of more exposure of dark areas to sunlight, higher melting and more dark surface absorbing heat. 
  • Such phenomena accelerate the rate of global warming, with consequences through climate change for coastal areas, access to water, farming and human health.
  • A global warming with climate change in the form of altered rainfall, drought, floods, lost biodiversity and reduced crop yields would affect millions across the globe.
  • Hence increasing trend of warming is a warning to all countries that they cannot afford to rely on carbon-intensive growth any longer. All countries across the globe must strengthen with clear and unambiguous actions against global warming, which should lead to a scaling up of renewable energy and measurable decline in use of fossil fuels.

Conclusion-

The increasing global temperature is cause of concerns for all stakeholders across the globe. Last three years in a row have witnessed record highest temperatures since industrial times. Hence all countries across globe must effectively implement their commitments to reduce carbon emissions and should promote renewable energies effectively.


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