This summarizes the real experiences from the last 45 years:
Well, it’s now the 45th anniversary of Earth Day, and a good time to ask the question again that Bailey asked 15 years ago: How accurate were the predictions made around the time of the first Earth Day in 1970? The answer: “The prophets of doom were not simply wrong, but spectacularly wrong,” according to Bailey. Here are 18 examples of the spectacularly wrong predictions made around 1970 when the “green holy day” (aka Earth Day) started…
via 18 spectacularly wrong apocalyptic predictions .