It is obvious to me that we can't depend on the market place entirely for solutions. The governments of the world need to place a price on the emission of carbon dioxide. The burning of coal and oil
needs to be gradually phased out. I am in favor of nuclear energy as part of the solution and that requires government involvement. If the world wants to limit the global mean temperature rise to
1.5 degrees C. that will require around a 40% reduction in CO2 emissions by 2030 and a 100% reduction in CO2 emissions by 2050. This isn't going to happen. It is possible to limit the GMT to 2.0
degrees C. and this is considered a dangerous level but it is better than 2.5 degrees C. and much better than 3.0 degrees C.