Not this stupid canard about “they thought there would be another ice-age in the 70’s.” First-of-all, its not true. Even then most climate scientists expected global warming. Second, even if it was true, so what? Scientists update their theories based on new evidence, that’s how science works! Wingnuts are always going on about how we can’t trust science because “back then you said this, and now you say this”. It’s a feature, not a bug you idiots.