ClimateChange

Western Disturbances: Origin, Spread, Effects and Climate Change | UPSC

/ Mains Articles /

What are Western Disturbances? Western disturbances (WDs) are eastward-moving extra tropical mid-tropospheric cyclonic circulations most often embedded in the subtropical westerly jetstream (STWJ). A jet stream is a river-like current of air circulating across the globe at upper levels of the troposphere (near the altitude of 30,000 feet). Why are they named so? The word […]

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Arctic Amplification: Causes, Effects, Solutions | UPSC

/ Mains Articles /

Arctic Amplification: Causes, Effects, Solutions Context: While the Earth’s surface as a whole has warmed by around 1.2*C since the industrial revolution, temperatures are not rising at the same rate in all corners of the world. One difference is the faster pace that land areas are warming compared to the ocean. But perhaps the biggest

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The Anthropocene Epoch: Definition, Significance, and Controversies | UPSC

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Anthropocene Epoch: Meaning and Debates Context: Scientists recently proposed to formalise an ‘Anthropocene Epoch’ on the geologic time scale, triggering several debates. Analysis Background The Geologic Time Scale is the “calendar” for events in Earth history. All 4.6 billion years of Earth’s history are split into—in descending order of duration—Eons, Eras, Periods, Epochs and Ages

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