> more evaporation over oceans, which makes the air denser
More humid air is less dense than less humid air at the same temperature and otherwise same composition. H2O has a molar mass of 18, vs ~29 for dry air.
If you don't build nuclear plants, you'll get your base load generation from fossil fuels. Greenpeace has always strongly opposed nuclear power.
In itself, that doesn't mean they're wrong. But right or wrong, it's unquestionable that they have been successful at antinuclear activism. As a result, their activism has the net effect of promoting carbon pollution, and by no small measure.
More humid air is less dense than less humid air at the same temperature and otherwise same composition. H2O has a molar mass of 18, vs ~29 for dry air.