What is this syfy movie?

its like a syfy movie. Okay so it starts out with like a meteor about to hit earth and it misses only a little and like breaks the ozone layer or something and it gets super hot and these people are trying to survive and the water is like starts to evaporate and stuff!!! one part the people find this fountain with all these dead people around it and the fountain is still running and stuff that's all I know.... So do you know the name of this movie?