I don't know what you're talking about - you seem to be mixing up loads of different things.
The hardest thing at the moment is to predict exactly what the local effects of climate change will be. I don't know anybody who's ever predicted we'd not get snow ever again.
The change is global - as it happens at the moment the UK looks like it will be amoungst the least affected nations in the short term - If you're expecting Wiltshire to look like the sahara in your lifetime you've got the wrong idea.
In your mind water vapour might work like that but I have the feeling you're not exactly an expert in the matter. Especially when you suggest that a hotter sun will trigger an ice age.
As I say water vapour is a greenhouse gas.
The "hockey stick" graph is something quite different - it's a graph of historical temperatures bumping along for the last thousand years or so that then shoots up in the shape of a hockey stick as the industrial revolution kicks in.
Over the years it has been much attacked by skeptics because it has a strong implication that man is responsible for a sudden increase in global temperatures.
http://en.wikipedia.o...key_stick_controversy
Historically there have been ice ages and the Earths temperature has varied.
But this one is different. If you put in all the data to the models you can correctly predict these past temperature variations. You can't do that with this last one.
The numbers only work if you include Man's effect.
That's what gets all the skeptics - you can't show that it's right or wrong with some fact pulled out of the air like a rabbit out of a hat.
You have to do the numbers.
Very few skeptics do the numbers - tho