the.com/ozone
three oxygen atoms holding hands to either shield you or choke you, depending on altitude
smellthat sharp scent after lightning is fresh ozone
name originGreek ozein, meaning to smell
good vs badhero in the stratosphere, pollutant at ground level
discoverynamed in 1840 by chemist Christian Schonbein
sun shieldabsorbs most of the sun's harmful UV rays