If we're in a grand solar minimum, and a short one, then probably ~2050 will be the start of the coldest 12 year cycle. By ~2040 the ruse will be up.

Why are they actively blocking nuclear in "green" energy? Well solar, wind and hydro will be utterly fucking useless. When we're talking the River Thames and the Delaware both freezing over, much of where solar and wind is already built will be non-functional through winter months. Limiting fossil fuel extraction means you can't just subvert them trying to extinct you in the deep winter by running a generator or a propane furnace.

But why nuclear specifically? Because it can be scaled to such a degree and so safely that we can give a big middle finger to "mother nature". We can feed every human off greenhouses heated and lit off nuclear energy. We can heat every house off nuclear energy.

I mean if the situation got so dire you could effectively and efficiently convert everyone's water supply. You put the water in pressurized at >100C, you convert peoples furnaces to a water heat exchanger, that dumps into a cold water tank that overflows into the sewer until you can run the pipes to return it to the supply. Also eliminates the need for chlorine. If you had plentiful nuclear energy you could be heating everyone's water and everyone's house by bypassing the cooling towers.

Why do they not want nuclear power? Because it could get humanity through the worst ice age.