What causes global warming? You do,silly! Kevin Cummins Sierra Club Volunteer Increases in carbon dioxide cause the earth to get warmer Greenhouse gases such as carbon dioxide (CO2) (plus other gases like methane) in the atmosphere absorb heat radiating from the earth.
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Sierra Club Volunteer
Greenhouse gases such as carbon dioxide (CO2) (plus other gases like methane) in the atmosphere absorb heat radiating from the earth.
This trapped heat increases the evaporation of water from the oceans into the air to cause a greater increase in warming of the atmosphere. CO2 has a forcing effect on climate.
The combined effect of water vapor, carbon dioxide and methane controls the temperature of the earth.
CO2,CH4 and estimated global temperature (Antarctic ΔT/2
in ice core era)
0 = 1880-1899 mean.
Source: Hansen, Clim. Change, 68, 269, 2005.
into a moulin,
a vertical shaft
to ice sheet base.
Source: Roger Braithwaite, University of Manchester (UK)