Medical Ecology: Anthropogenic CO2

History of CO₂in the Atmosphere

Gray area: Range of error of measurement of atmospheric CO₂Science Magazine 1998

Determination of Annual CO₂ Levels
in the atmosphere for the Northern Hemisphere

Yearly fluctuations in atmospheric CO₂ levels correspond to the winter and summer months. During the summer, the increased photosynthetic activity of plants fixes CO₂, thus removing it from the atmosphere.
Mount Kilowa Observatory

History of CO2 in the Atmosphere

Determination of Annual CO2 Levels in the atmosphere for the Northern Hemisphere

History of CO₂in the Atmosphere

Determination of Annual CO₂ Levels
in the atmosphere for the Northern Hemisphere