What's the first question that most people ask upon hearing about a disaster of any description?
How many people were killed is the norm.
Disasters alway make bigger headlines than happy events.
We're told that AGW is likely to cause a catastrophe at some time in the future and that naturally attracts more interest than the high probability that GW will make Earth a better place to live.
So there you have it, bad news is preferable to good news and many people like to be frightened, apparently.
Me, I like watching films where no one gets killed and everyone lives happily ever after as they ride off into the sunset.
Here's a happy news site, it even has a link to a kite energy invention: http://www.happynews.com/