The place where we live is dangerous

This is an excerpt on Global warming documentary shown on discovery channel.

Global Warming has already embraced parts of the earth. Floods, Hurricanes, Drought areas are increasing when compared with the earth a century ago. From the past century the earth's temperature has hardly increased by 1/2 a degree, and this was sufficient to kill Corals schools because of increase in sea water temparature, Hurricanes and Floods because of melting at polar regions, peoples burried under stones instead of loam / soil in drought areas. A mere half a degree raise in temperature can destruct so much, imagine a raise of 5 degree. Yes, this is going to happen by 2050 as scientist predict. The place where we live is dangerous in near future.