Scientists find ozone depletion began decades before discovery of ozone hole

MIT News | June 29, 2026, 3 p.m. | Original
Using modern tools, they also determined that carbon tetrachloride, used as a dry-cleaning and degreasing agent as early as the 1930s, was at the root of early ozone loss.
3 Questions: Beyond data-driven aesthetics Inaugural Music Technology Research Showcase celebrates work of new graduate program’s initial students