Future shocks

Living in this world would get much more difficult if climate change continued unmitigated in the future. Already, average Arctic temperatures increased at almost twice the global average rate in the past 100years. Contraction of snow covered area, increases in the depth of thaw over most permafrost regions and decrease in sea ice extent are projected. Arctic late summer ice is expected to disappear entirely by the latter part of the 21st century. There would bean increase in frequency of hot extremes, heat waves, heavy precipitation and tropical cyclones.

Mountain glaciers and snow cover have declined on average in both hemispheres, and this would continue, with serious implications for India, especially for northern India - the rivers originating in the Himalaya-Hindu Kush range depend on supply from the glaciers in the region. With a decline in the mass of ice, river water flow is expected to shrink.

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