Comment Re:Extrapolation (Score 1) 179
The world consumes 23000 GW, of which about 70% (16000 GW) is from fossil fuels. At the current pace, it would then take 64 years to replace all fossil fuels with renewables.
Doesn't take into account improvements in efficiency. UK energy use for example peaked in 2005 and has been dropping ever since despite over that 20 year period the population increasing by over 13% from 60 million to 68 million.