Does anybody agree? If not why?

Does aybody agree that Global warming is something that is supposed to be occuring. Just a few days ago I went to the national geographic website and there was a news about people who lived 150,000 years ago barely survived when CLIMATE CHANGES were occuring. I still do think that the coal, fossil fuels and other things are affecting Earths temperatures. Climate changes are changes in Earth. Earth is supposed to change. So does anybody agree that temperatures rising or Global Warming is supposed to occur?