First, as the attached "free book" by the late David JC MacKay (Google his name for a 'Wiki Bio') explains...we have two motivations for stopping the BURNING of Fossil Fuels...1) the 'Finiteness' of FFs, and 2) Rapid Climate Change, with it's impact of human living conditions and in many cases, survival.
Next, I'm probably more vocal about total reliance on "Renewables" than you are...I have already met with my Congressman on this issue and have continued to work with staff members in D.C. to emphasize the need for Nuclear Power...answer questions on safety and waste disposal...and remind them of the need for incredibly expensive "Storage" systems when contemplating only Renewables for 'Grid Level' Energy...we'll start having new, less expensive, more versatile, and even safer Nukes when they've completed demonstration tests...probably by 2030...meanwhile, we hang on with what we've got technology wise, and that includes gas-fired power plants, as well as existing Nukes, and some additional Wind/Solar plants.
I agree with you to a large degree on bio-fuels, but need to know more about that option, especially for aviation.
Fusion Energy not only requires 'Breakeven', it also has other issues...the first design is probably going to involve Deuterium and Tritium (radioactive) which will become very hard to contain as well as challenging to supply (i.e. Tritium from Lithium)...then there's the effect of 14 MeV neutrons on materials for shielding and the structures...there's lots more to be done before it lights any LEDs...but never say never.
If you haven't seen my link before, give it a look...solid science...not "Hot Air" and emotions.
Link: https://withouthotair.com
