the amount of energy radiated from the sun changes over an 11 year cycle
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Card 9
Front
large asteroid collisions can cause cooling asmaterial blocks out the sun. asteroids hitting the earth can cause huge fires which release massive amounts of CO2 which subsequently a warming effect
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Card 10
Front
humans and climate change
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Card 11
Front
the enhanced greenhouse effect
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Card 12
Front
greenhouse gases in the atmosphere trap some of the heat (necessary for life on earth), human activity increases greenhouse gases in the atmosphere leading to more warming
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Card 13
Front
1. global temperatures are rising - for example in 2015 the average global temperature was 1 degress celcius above the average global temperature in 1850-1900
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Card 14
Front
3. the oceans warmed by 0.11 degrees celcius per decade between 1971 and 2010
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Card 15
Front
5. arctic sea ice overs 13% less of the sea each decade
