Re: much more safer to operate!
If a solar plant falls over or blows up it won't contaminate an ocean or 1,000 square miles of land.
You are a fan of homeopathy it seems. So people got very excited about Fukushima, and proposals to dump radioactive water into the Pacific. So that's around 710,000,000 km3 of ocean. So waste water would end up rather diluted.
And odd fact. Fukushima used to bottle a health tonic, because not far from the nuclear plant is a natural radium spring. Radium water kinda fell out of fashion, but the spring's still there, and naturally more radioactive than most of the waste water at the plant.
And radiation is everywhere. So the Pacific is 165,250,000 km2 and the surface is constantly bombarded by cosmic and solar rays. Those smash into the water and create radioactive isotopes. And then there's all the geological activity from ocean vents pumping deadly radiation from the Earth into the oceans.
And oddly enough, 'renewables' also contaminate the land with deadly poisons..
https://www.researchgate.net/publication/342671383_Metal_dissolution_from_end-of-life_solar_photovoltaics_in_real_landfill_leachate_versus_synthetic_solutions_One-year_study
Rainwater stimulating solution was found to be predominant for metal leaching from silicon-based photovoltaics, with Ag, Pb and Cr being released to 683.26 mg/L (26.9%), 23.37 mg/L (17.6%), and 14.96 mg/L (13.05%) respectively. Copper indium gallium (de) selenide (CIGS) photovoltaic was found to be least vulnerable in various conditions with negligible release of In, Mo, Se and Ga with value ranging between 0.2 and 1 mg/L (0.30%-0.74%
And similar problems with slowly decaying windmills. Which can also do environmentally friendly stuff like oil spills. Or there's battery fires, which release clouds of HF and other toxic heavy metals. But the most polluting aspects of 'renewables' come from their production. But that's contaminating China, not UK Greens.