"There are all kinds of causes to be alarmed about. For example, there's the Greenhouse Effect, which is one of the more recent in a series of alarming worldwide homicidal trends to be discovered by those busy beavers, the scientists. They've found that the Earth is slowly being turned into a vast greenhouse, so that by the year 2010- unless something is done- the entire human race will be crushed beneath a humongous tomato. Or something along those lines. I confess that I haven't been following the Greenhouse Effect all that closely."
January 1, 1970
https://en.wikiquote.org/wiki/Global_warming