2.) shale oil is NOT being extracted - you're confusing with tight oil
3.) we don't know whether extracting shale oil even makes sense - for all we know, it might never become economically and energetically viable
(IMHO, considering global warming, tight oil/gas & tar sands did not make sense in the first place either - especially since the whole tight oil industry hasn't even shown to be financially and therefore probably energetically profitable !)
4.) even if we did, the (E)ROI (and therefore, the pollution involved) is likely to be dismal
5.) a century ago, world oil production was a few million barrels per day, you can't just both assume business as usual and the consumption to stay flat when taking into account future consumption...
2.) shale oil is NOT being extracted - you're confusing with tight oil
3.) we don't know whether extracting shale oil even makes sense - for all we know, it might never become economically and energetically viable (IMHO, considering global warming, tight oil/gas & tar sands did not make sense in the first place either - especially since the whole tight oil industry hasn't even shown to be financially and therefore probably energetically profitable !)
4.) even if we did, the (E)ROI (and therefore, the pollution involved) is likely to be dismal
5.) a century ago, world oil production was a few million barrels per day, you can't just both assume business as usual and the consumption to stay flat when taking into account future consumption...