It is rare for anyone to follow up on past, bold pronouncements about the future. Such pronouncements tend to be wrong.
I was old enough in 1970 to remember some of these predictions, made under the umbrella, at times, of “scientific certainty”.
This list was made in 2009 – and now we are at 50 years later.
IHTM – Earth Day predictions of 1970.
Source: IHTM – Earth Day predictions of 1970. The reason you shouldn’t believe Earth Day predictions of 2009.