Alternative oil in pictures
NB! There are no confidence intervals for those figures. If one was forced to make a guess based on best available data, the greenhouse reduction potential of ethanols would be greatly reduced. This all depends on production technology (how much oil, which ethanol source, where is cellulose shipped from, etc).
Further, reduction in greenhouse gases do not solve the problems that:
- Many ethanols are energy losers (take in more fuel energy to make than give when burnt)
- They do not scale to meet the rising liquid fuel demand (and the drop in oil production)
