And I'm not even sure the people in the anti-nuclear movements were really that concerned about CO2 emissions in the 70's or 80's. While currently renewables are much cheaper than nuclear that wasn't the case 30 or 40 years ago. Without the absurdly irrational reactions to TMI and Chernobyl a few years later, we would have been much better situated to considerably reduce CO2 emissions but sure blame the oil lobby (of course there are plenty other things to blame them for) ...
It's easier to target marketing against a few 'smoke stacks' than ten millions tail pipes. It's easier for people to get people to sign petitions against an 'industrial site' that is many kilometres away that most people will never see, compared to having people trash their own personal possession (their car).
https://www.encyclopedia.com/environment/educational-magazin...
The late 1960s through 1980s saw a shift in the antinuclear movement toward protesting the development of nuclear power as an energy source. The antinuclear movement succeeded in virtually halting the governments' development of nuclear power.