That's not supported by physics. Even at the worst - if the other reactor had somehow also melted down, that still wouldn't have caused a major climate change event. It would have been absolutely terrible, regionally, but not globally. Nuclear reactors aren't atomic bombs.
I don’t understand. Plenty of climate change related developments are regional. See: the increasingly devastating hurricanes forming in the Gulf of Mexico. Not every single thing that we attribute to climate change has to span the entire globe.
