Comments by "hg2" (@hg2.) on "Climate 101: Ozone Depletion | National Geographic" video.

  1. Does the fact that there is 6 months of darkness at the south pole contribute to lack of ozone there? Why doesn't Clorox, pool chlorine, or chlorine from seawater (NaCl "salt water) deplete ozone? Why do CFC's only deplete ozone at the south pole? Why are CFCs the only source of high-atmosphere chlorine? Being heavier than air, how do CFCs reach the stratosphere, which starts 6 miles up? Being heavier than air, what happens to CFCs when released into the atmosphere? If the ozone hole was "discovered" in the late 70s with satellite imagery, how do we know it wasn't there all along?
    8