Answers

2016-07-31T19:29:12+08:00
It is caused by climate change. also bc of dangerous gases in the atmosphere caused by people like chlorofluorocarbon, it makes holes in our ozone layer, thus, global warming
0
2016-07-31T20:05:31+08:00
Global warming is the effect of human (anthropogenic) activities...some examples are pollution...
0