Current oil production is 90 million barrels per day. If we take a barrel to contain atoms of carbon, and the atmosphere to contain molecules, then oil production accounts for an increase of only 1.05 ppm per year, which is less than half the current increases of 2.5 ppm . Where is the other 1.45 ppm coming from? Also consider that about 50% of emissions are supposedly absorbed by the biosphere. Hence we're emitting the equivalent of about 5 ppm per year, which is about 450 million barrels of oil per day equivalent. These numbers don't really seem to add up to me. Hopefully someone here can help fill in the blanks.
