The quickest increase in carbon dioxide from volcanoes is 100ppm per Million years -- or 0.0001 per year.
We are now averaging at least 2ppm per year (actually this is increasing!) -- this is 20,000X quicker than it ever has been. Humans are the only plausible cause.
We also have actual physical evidence -- the isotopes of carbon now in the atmosphere could only have come from fossil fuel.
Again, to reject the scientific conclusions is no more possible than it is to reject the fact that the earth orbits the sun, or that the universe started with a big bang or that the same DNA control the growth of all biological life.
Back on topic: I paid $.3559 for my most recent tank. The next day it was $3.569 -- this is an increase of ~35 cents a gallon in about 2 months. Oil companies are still making record profits.
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