I am pretty much 100% in agreement with Prof Jacobson, although I’m sure he is much more informed than I am. On thing you have to remember is there are millions (billions?) of dollars being spent on sophisticated advertising campaign to keep established players (oil, gas and coal) in charge. Will it be “easy”? Actually I don’t see any reason for it to be difficult. Certainly easier (and much cheaper) than dealing with the effects of doing nothing. From the Guardian (UK).

‘No miracles needed’: Prof Mark Jacobson on how wind, sun and water can power the world