New Research Indicates Earlier Start to Ozone Depletion Due to Industrial Chemical

A recent study suggests that Earth's ozone layer began depleting decades earlier than previously understood, predating the discovery of the Antarctic ozone hole. Researchers identified carbon tetrachloride, an industrial chemical used since the 1930s, as a significant contributor to this early ozone loss, alongside CFCs. This finding underscores the necessity of ongoing monitoring for ozone-depleting substances.