21 - Temperature Rise

° C 5 4 3 2 1 0 2000 2015 2050 2100 1950 Source: IPCC Model - natural only (solar and volcanic) Model - natural and human - caused Observed Global surface temperature change from 1850 - 1901 + 9 ° F ( 5 ° C) + 2.7 ° F ( 1.5 ° C) + 2.2 ° F (1.2 ° C) Rising Temperatures 21
Set 1 www.climatefresk.org 21 The average air temperature at the surface of the Earth has increased by 2.2 ° F since 1900 . Possible future emission scenarios predict that this increase will reach between 2.7 ° F ( 1.5 ° C) and 9 ° F ( 5 ° C) by 2100 . During the last ice age 20,000 years ago, the average air temperature was only 9 ° F ( 5 ° C) lower than today, and warming up took 10,000 years.

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Cause

Energy Budget

Energy Budget

As mentionned on card 21, this is the temperature of the air, above ground, in average on the Earth.

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Consequences

Disruption of the Water Cycle

Temperature Rise


Terrestrial Biodiversity

Temperature Rise


Decline in Agricultural Yields

Temperature Rise

In northern countries, a little increase in temperature can lead to better yields, but in southern countries, it's the contrary: Any degree warmer is a decrease in yields.
Heat Waves

Temperature Rise


Permafrost

Temperature Rise


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Other possible consequences

Vectors of Disease

Temperature Rise

The vectors of disease card is generally linked to the Terrestrial Biodiversity card because disease vectors are a sub-part of biodiversity, but it can also be linked to the same causes as the biodiversity card, i.e. Disruption of the Water Cycle and Rising Air Temperatures.
Human Health

Temperature Rise


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