Must have been all those gas-guzzling SUV’s the dinosaurs were driving
That and the pack of Winstons each day that they smoked.
The Flintstone's SUV was the cause of the end of the Glacial Period and Ice Age.
Everybody knows that it's a proven scientific fact. Can't argue with science. Case closed. End of story. No argument. Don't even try to deny it.
Maybe, just maybe (I’m in California, y’know) it was dinosaur “emissions” (I’d write “farts” but that’s a bit crude).