One day I will truly understand the hate for nuclear fission, and the hilarious idea that it is renewable against everything else, when I would say it's pretty obvious to me that at best it will be renewables and nuclear, renewables alone will not meet the energy needs around the world, and that is what is required, full 0 emissions or as close to it as we can possibly get (depending on advances in CDR technology) is the goal the entire world needs to meet, and the key here is that we are talking about an entire planet.
Such energy goals require flexible power solutions, which renewables just simply aren't.
Any form of renewable only energy will require both a place where such energy harvesting is possible, but also vast storage of said energy for when gathering such energy isn't possible, which in turn ofc also requires extremely significant over building of energy gathering that can actually charge those storage in what ever time frame the worst case scenario for them are in that region.
Which brings us to the point that a lot of what makes renewable energies cost effective and green, is the fact that we aren't taking into consideration energy storage, because most countries are using so little renewable, that we haven't reached the point where that has become truly needed.
If we take energy storage as it stands now into account in that magical world of renewable only, then renewable become straight up prohibitively expensive, and also not very clean because pillaging the earth for those resources with variable levels of recyclability isn't all that massively green.
Now yes we have varying solutions to the energy storage problem, some countries will be able to just pump it into dams to use it for later, others will be able to use old tunnels to compress air in them, and so on and so forth, but we need a truly global solution, one that will work in every country and for every city, and renewable is just simply not it.
The world needs Nuclear energy, and it needs it in the next couple of decades, now if we will have viable fusion in time to the point we can stop bothering with fission is anyone guess (I believe we will), but as things stand today, nuclear fission just simply needs to be a part of tomorrow 0 emission world, because there is nothing that exists now that can viably replace it around the world, both in terms of cost and in terms of environmental impact.
Don't take this the wrong way, this isn't anti renewable at all, at this point in time countries should be investing an absurd amount into renewable, because there is "easy" gains to be had, it is just simply that as the more we convert to renewable the more the issue of not having reliable 24/7 energy will come up, and as such the less effective the investment into renewable become both at a cost and environmental level.