Global Warming

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Unit 2 Summative Task

от Savannah Burgess-Smith - Jean Augustine SS (2612)

Possible Initiatives to stem the disturbing trends in Global Climate Change

от Nickolas Lang

Chefs turn bugs into tasty dishes

от Sara Herten-Greaven

Energy Diet

от Victor Moreno

About Global Warming

1750 Industrial Revolution

After

Balance disrupted

Burning fossil fuels

Waste CO2

Transportation

Energy

Before

Fine Balance

14C

Sustained life on earth

10.000 years

Greenhouse Gases

Man Made CFC's

Lifetime: 45 - 1.700 years

Most abundant

Lasts for decades to centuries

Methane

2nd most abundant

CO2

Now

380 parts per million

1750

280 parts per million

Highest in 650.000 years

Greenhouse Effect

Greenhouse gases

Manmade

Natural

Trapheat

Solar radiation

Water absorbs 90%

Ice reflects 90%