Hrm, my wording might have been a bit off itself but I mostly just wanted to highlight and rebut what could be worded in your original statement as a sort of fatalist "Even if we reduce what's coming from Canada it won't effect overall production". I do agree that the impact won't solve global warming or potentially cause a reflection in gas pump prices, but the supply is definitely elastic and while the demand is inelastic in the long term short term price fluctuations do actually cause short term fluctuations in demand so there is a fair bit of elasticity there as well.

People will find ways to reduce their car commute when prices spike and, especially, oil power plants will defer operation to cheaper (possibly less clean :sigh:) alternatives.