First of all, the idea that the climate anywhere would be substantially the same in 1,000 years regardless of human action is of course ridiculous. Second, the idea that all changes in the climate will have ill effects for humans and the 'environment' is equally ridiculous. But the truly stupid things are that a) scientists think they can predict (using 'complex' computer models) complicated interactive systems 10 years out let alone 1,000 years is insane, and b) that they do not take into account that radical changes in technology and science will have occurred if humanity still exists 1,000 years from now.
Can you imagine trying to explain to an average person in 1,000 the world in which we live? That will make explaining the world of 3,008 to us seem like explaining that 1+1=2... The media, and the scientists they help fund, are just trying to keep you scared. The Bible of course tells us time and time again not to worry.
Now, of course I am not saying that we should not be interested climate, or general creation care. We very much should. I am saying that we need to be extremely careful about buying in to predictions of gloom and doom that are tenuous at best, and I think facially absurd.