You realize, once Petroleum runs out this century, humanity is completely screwed right ?
Forget transportation/energy, our economy is chemically hooked on to it like a coke-addict.
https://www.youtube.com/watch?v=VOMWzjrRiBg
If the transition doesn't happen, we're looking at it dropping to 1-5% of its size now.
I hope we do this before we take out the rest of the earth with our cancerous global-scale genocide of everything - animals, plants, cultures, 'different' humans, languages and cultures.