Does global warming plays a role in changing our environment into too hot?

[:-sweat] ANSWER TO THE ABOVE QUESTION Global warming is causing rainfall in sahara desert as per below link http://news.nationalgeographic.com/news/2009/07/090731-green-sahara.html global warming as the name suggests is expected to make the atmosphere hotter. Ice caps can melt and we may see people settling in on the antartica . antartica has no plants before. But recently grass is growing. Probably it will bring in the density of population on different parts of the earth. And ee may also see some islands disappearing