Frank Capra film warned of climate change 50 years ago
The 1958 Frank Capra educational film The Unchained Goddess contains a specific and prophetic warning about excess carbon dioxide emissions from industry and transportation, and their potential to trigger catastrophic global warming:
Even now, Man may be unwittingly changing the world's climate through the waste products of his civilization.
That was fifty years ago.
Here's a short clip:
(Via the Center For Investigative Reporting)