FlyingLotus, in your opinion, how does the fact that renewables are now cheaper than fossil fuel fit into your calculation?
Wind/solar electricity is cheaper than natural gas or coal generated electricity in many, if not most, circumstances now but wind/solar couldn't singlehandedly power a city unaided by some baseline source of electricity so natural gas plants will continue to be build, especially as nuclear power plants are mothballed. The only optimistic news on the climate front stems from this above fact: we might be on the steep upward sloping part of the S Curve for adoption of wind/solar. Sadly, Jevon's Paradox probably applies - if solar/wind become cheaper but there is still a substantial need for natural gas, a lot of the anticipated emissions reductions could be attenuated by increased electricity use as prices drop.
This trend, of course, is of limited relevance to the transportation sector, which is the sector most relevant to petroleum products - electric vehicles remain expensive, though their price is falling fast, and adoption rates by consumers, while impressive compared to rates even five years ago, aren't sufficient to make rapid progress. Again, there's a kind of Jevon's Paradox at play here - insofar as oil demand is curtailed by improved fuel efficiency and increased adoption of EVs, oil prices are held down and that shifts incentives for other uses of oil or for increased car usage among those who do not have EVs. I certainly wonder if Amazon's growth would have been held back in oil was at 150 dollars a barrel!
Without aggressive carbon taxation that ratchets up every year, we'll find that markets aren't very useful mechanisms at limiting climate change.
Stated different, the CO2 intensity of economic growth is plummeting due to these advances, a wonderful trend, but this is not sufficient. For every dollar of US GDP, 0.32 kg of CO2 is emitted. In 1950, for every dollar of US GDP, 1 kg of CO2 was emitted. However, due to the growth of the US economy, for emissions to drop to 1950 levels, we'd need 0.14 kg of CO2 to be emitted per dollar of US GDP (and this required intensity rate falls every year) - it took 35 years for carbon intensity to be cut in half between 1979 and 2014. We'd need this to happem again and then some to limit emissions to 1950 levels - this is a very difficult task and the US cannot be assisted by offshoring dirty industries this time...