but is it science · Climate Change · Environment · politics

AGW Claims vs. Truth – 4. Increased Fossil Fuel use and CO2 level

CO2 Increase since 1950 does not track Glacier Shortening
Increase in hydrocarbon use since 1950 does not change Glacier shortening rate since Little Ice Age (indicator of warming climate)

Claim 4. Manmade CO2 levels have been rising rapidly due to increased industrialization and populations since the 1950s.

Truth: CO2 levels have been steadily rising along with warming since the Little Ice Age. Recent increases in industrialization and population appear to have contributed to the increase in atmospheric CO2 since the 1950s when fossil fuel consumption began increasing. Rising temperatures have also contributed to increased CO2 because it is less soluble in warmer ocean water and is thus released.  it is unclear how much is from manmade sources and how much is from natural processes, but some estimate put it at 5%. However, if CO2 is not responsible for global warming, (see previous posts) increased levels shouldn’t alarm anyone and in fact increased CO2 should be celebrated as a plant growth promoter.

15 climate chart - 11K yrs vs CO2
Eleven thousand year temperature and CO2 level record from ice cores

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