21 - Rising Temperatures

° 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 - 1900 + 5 ° C + 1.5 ° C + 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 1.2 ° C since 1900. Future emission scenarios predict that this increase will reach between 1,5 ° C and 5 ° C by 2100. During the last ice age 20,000 years ago, the average air temperature was only 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

Rising Temperatures


Terrestrial Biodiversity

Rising Temperatures


Decline in Agricultural Yields

Rising Temperatures

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.
Heatwaves

Rising Temperatures


Permafrost

Rising Temperatures


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Other possible consequences

Vectors of Disease

Rising Temperatures

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

Rising Temperatures


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