It's usually the same people that would have been the loudest to shout if it had not worked as well as it did...

It's the same people who don't even notice that we don't talk about acid rain anymore, because we solved it with government regulation for pretty cheap.

They even indignantly mention the Ozone layer, insisting that "Look, liberals told you to care but its not a problem anymore", ignorant entirely of the immense global effort to fix that.