On this day in history, January 23, 1957 – New Zealand scientist warns about consequences of carbon dioxide build-up. “If the existing percentage of carbon dioxide gas in the air was doubled, the earth’s temperature would rise enough to melt polar ice caps and flood many major coastal cities.”

On this day in history, January 23, 1957 – New Zealand scientist warns about consequences of carbon dioxide build-up. “If the existing percentage of carbon dioxide gas in the air was doubled, the earth’s temperature would rise enough to melt polar ice caps and flood many major coastal cities.”

Source: The_Weekend_Baker