On this day, 40 years ago, the US Environmental Protection Agency released the second revised edition of “Projecting future sea level rise : methodology, estimates to the year 2100, and research needs” by John S. Hoffman, Dale Keyes, James G. Titus.
The amount of carbon dioxide in the air was roughly 342.5ppm. As of 2023 it is 419ppm, but check here for daily measurements.
The context was that the EPA had, like others, been taking an interest in long-term effects. Long-before “the Greenhouse Effect” became a threat (finally) acknowledged by our lords and masters, smart people were doing the sums.
What we learn – nothing. We never learn anything
What happened next – the issue broke through in 1988, for what it was worth. And we have spent the 35 years since then making things worse.