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Consequences of Global climate Change

Consequences of Global climate Change. Impact of Global Warming. Sea level rising Altered precipitation pattern Change in soil moisture content Increase in some extreme weather More flood more drought Alteration of natural climate cycles like El Nino Changes in the species ranges

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Consequences of Global climate Change

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  1. Consequences of Global climate Change

  2. Impact of Global Warming • Sea level rising • Altered precipitation pattern • Change in soil moisture content • Increase in some extreme weather • More flood more drought • Alteration of natural climate cycles like El Nino • Changes in the species ranges • Changes in the ocean circulation • Melting of Arctic permafrost

  3. 1.Extreme temperature events • Increase in number of abnormally hot days • Higher maximum temperature • Most land areas can expect fewer exceptionally cold days • Longer frost-free growing seasons

  4. 2. Sea level Rise • Three thousand years ago the rate was 0.1 to 0.2 mm per year • But by the twentieth century sea level was rising ten times faster at 1- 2 mm per year. • Future sea level • Projection of SLR for 21 st century ranges from 20 cm to 60 cm. (8 inch to 24 inch) • A1B scenario suggests a best estimate for SLR in 21st century 35 cm – (14 inch)

  5. Contribution to Sea level Rising(SLR) • Melting land base ice • Thermal expansion of water due to increase in the temperature. • Melting permafrost (deposition of the sediments by river flows and human alteration of hydro cycle. • Note: Floating ice will not change the SL.

  6. 3. Change in Hydrologic Cycle and Weather • Warming increases the evaporation and therefore causes more intense hydrologic cycle • More precipitation : this is not evenly distributed. Drier areas seeing substantial decline. • Precipitation and river flows are expected to increase at high latitude and some parts of the tropics. But decreasing over the mid-latitudes and dry tropical regions. • Increase flooding in some places increase drought in some places especially in continental interior. • Increase in the intense of the Tropical storms

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