Demand for plastics is something we can do something about rapidly, without heavy impact on infrastructure. Woodfibre technology has made huge advances over the past decades. You can't be me, I'm taken
USA uses roughly 20 MMBD of oil. less than 20% is assigned to "other oils"
http://tonto.eia.doe.gov/dnav/pet/pet_sum_sndw_dcus_nus_w.htm
scroll to the last table.