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Old 04-26-2018, 12:31 PM   #1493 (permalink)
NeilBlanchard
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Quote:
Originally Posted by oil pan 4 View Post
That carbon isotope thing is only telling us what portion is released by man. We know we use a lot of carbon fuel, something to the tune of 15 quadrillion BTU per year.
Fossil fuel only has carbon 12, and this shows that humans burning fossil fuels is what is causing climate change.

Burning biomass has a proportion of carbon 14. Volcanoes produce carbon 13.
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