In two typed paragraphs
in 1974, two chemist from the university of california at irvine- f sherwood rowland and mario j molina- warned that increasing levels of cfc’s would eventually deplete stratospheric ozone on a global scale. their studies suggested that ozone depletion would occur gradually and would perhaps not be detectable for many years to come
question 1.
what are the facts about ozone and how it works in our atmosphere?