I agree with Turtlekid1. It doesn't even matter that predicting the weather and the future are two different things; if we don't even know how a section of the Earth will be in a week, how will we know what the entire planet is going to be like billions of years from now? Remember the dinosaurs? We don't even know what colors they were. There can always be estimates, but there is still a sense of doubt. No one knows when the next Noah's Ark will occur.
This reminds me of a bogus Yahoo! article I read once that showed a discovery scientists found. These scientists said that through "research," they found that people maintain the same personalities throughout their entire lives. If that was the case, how come I know many people that have changed immensely? This proves that scientists are even willing to make things up to gain recognition/fame.