This is for those that say man's activities cannot have an affect on a large natural system like the atmosphere or however it is termed by those making that assertion. We've been told for decades that the use of CFCs caused the ozone hole. I just assumed that the scientists were right on this one. I suppose there were some then and now who dispute this. I'll work under the assumption that the scientists are right about the cause of the ozone hole and put it out there as evidence that human activity over time can have an effect on large natural systems. Under the same assumption, if CFC use has diminished then the ozone hole should get smaller over time. I guess we'll see how that goes.
http://www.usatoday.com/story/weather/2015/10/29/antarctic-ozone-hole-largest-ever/74812810/
http://www.usatoday.com/story/weather/2015/10/29/antarctic-ozone-hole-largest-ever/74812810/