Ozone depletion began decades before discovery of ozone hole, MIT scientists have found. Using modern tools, they also determined that carbon tetrachloride, a common dry-cleaning and degreasing agent, was at the root of early ozone loss.

Ozone depletion began decades before discovery of ozone hole, MIT scientists have found. Using modern tools, they also determined that carbon tetrachloride, a common dry-cleaning…

With today’s scientific tools, the problem could have been spotted in the 1950s.

Cientificos del MIT de EEUU han determinado cómo comenzó el agotamiento en la capa de ozono reconstruyendo la atmósfera desde el momento en el que se produjo y lo que se habría…

Scientists discovered the ozone hole in 1985, but if they'd had the atmospheric monitoring capabilities of today, they could have found it 30 years earlier, according to new…