Fifty five years ago, on this day, April 15th, 1969, a well-known British Scientist was sounding the alarm. Anon, 1969. Air Pollution Could Cause Flood- Expert. Coventry Evening Telegraph, April 16, p.10 The amount of carbon dioxide in the air was roughly 326.4ppm. As of 2024 it is 425ppm, but check here for daily measures. […]