Carbon dioxide (CO₂)

Pre-Industrial concentration = 280 ppm (parts per million) or 0.028%

2000 concentration = 370 ppm (parts per million ) or 0.0370%

Difference from Pre-Ind to 1990= 90 ppm

%Difference = 90/280 x 100 = >30%

CO2 Monitoring Stations

Graph of changing carbon dioxide (1958-1992) Mauna Loa

1955-2000 Mauna Loa

1955-2000 (multiple monitoring sites)

last 1000 years

Carbon cycle/Emissions

Sources of carbon dioxide

Global CO2 emissions (fossil fuel)

Global CO2 emissions (land use)

Ice Core CO2 (vostok)