Comment Re:Great! (Score 1) 135
The solutions exist NOW - renewables are already cheaper than fossil fuels in most markets.
That is an over simplification. The solutions may exist in a technical sense (for at least the energy production industry, and not the 70% of other sources we have for carbon emissions), but the scale does not. Even now countries that are most actively investing are finding very real problems and setbacks in adopting systems. You can buy all the solar you want, if you can't connect it to the grid it doesn't matter. If you can't move the energy around to where it is consumed it doesn't matter.
And on top of that many of our adopted solutions are competing with each other. E.g. The EU's mandate to eliminate F chemicals is already placing serious pressure on electrification upgrades needed to adopt more green energy due to supply constraints of non-SF6 switchgear. So you have the choice of decarbonising power generation or decarbonising the grid (SF6 isn't used much but with 25000x the global warming potential to CO2 it is actually a significant contributor), but you can't do both quickly.
That's just one example, the world is full of others. The classic example is nuclear. Even if want to invest everything we have in nuclear we won't be able to built it, we don't have the people or expertise, that's stuff that takes decades to build.