Communism is the dictatorship of the proletariat for the common benefit of all members. It's doubtful the Soviet Union was ever really communist.
Stalin was a dictatorship of one. Stalin.
Trudeau deserves criticism for many things but comparing him to those two or calling Canada a communist country is just over the top nonsense that gets the contempt it deserves and will unfortunately keep the CPC in the wilderness.
The the water from outside does not circulate through the reactor. The reactor cooling water is a closed circuit like the cooling system in your car. Heat exchangers transfer the heat to the water from the lake or river, like your radiator transfers the heat from your engine into the ambient air.
They don't scrub out CO2.
Anthracite coal emits 228 lbs of CO2 per million BTU produced.
Diesel and heating oil emit 161 lbs and natural gas emits 117 lbs.
Yes they use it for cooling but the water cooling the reactor is in a closed circuit and the river or lake water is cools the reactor water through a heat exchanger. Like a fresh water cooling system in a boat operating in salt water.
We will need fossil fuels for sometime but coal is the worst for power generation and needs to go. There are lots of alternatives, even oil is much better than coal. CO2 emissions from coal are up to 40% higher than diesel or fuel oil and 90% more than natural gas for the same amount of heat produced.
Well if you have a tidal wave than floods the reactor, so you don't build them on coastlines in high earthquake zones. Coal powered plants dump pollution into the air, 24/7, 365.