Humanity has never displaced an existing energy source with a new one. Instead total energy usage grows. Our only success with fossil fuel usage reduction is that coal usage is no longer growing.
Growing wind, solar, and nuclear by 10x from the 2019 levels reported in that data set would put them (as a combination) on par with one of the three big existing fossil fuel sources. But this can only decrease fossil fuel usage if increased energy usage does not take up all those gains as it has always done in the past.
I do think though that reducing fossil fuel usage could be possible now only because of the shifting demographics of the world (most of the world is starting a population decline). The counter argument is that a large portion of the world will continue to grow economically (increases energy usage) and become wealthy enough to start air conditioning and otherwise dramatically increase energy usage.
Humanity has never displaced an existing energy source with a new one. Instead total energy usage grows. Our only success with fossil fuel usage reduction is that coal usage is no longer growing.
Growing wind, solar, and nuclear by 10x from the 2019 levels reported in that data set would put them (as a combination) on par with one of the three big existing fossil fuel sources. But this can only decrease fossil fuel usage if increased energy usage does not take up all those gains as it has always done in the past.
I do think though that reducing fossil fuel usage could be possible now only because of the shifting demographics of the world (most of the world is starting a population decline). The counter argument is that a large portion of the world will continue to grow economically (increases energy usage) and become wealthy enough to start air conditioning and otherwise dramatically increase energy usage.