[ClearCase_guy]

Clouds play a major, but as yet not fully understood, role in the dynamics of the climate, with some types acting to cool the planet and others warming it up.

Other articles have stated that the oceans play a major role in the uptake of CO2. But what that role actually is, is not really understood.

So, let's recap: We don't understand the role of the oceans in changing the world's climate. We don't underdstand the role of clouds in changing the world's climate.

But the only thing we ARE really sure about is that all the bad changes are caused by humans. Got it?

[blam]

"But the only thing we ARE really sure about is that all the bad changes are caused by humans. Got it?"

Translation: SUV's are bad!

[farmfriend]

Amazing how such a complex issue can be simplified so easily. If I may make one change:

But the only thing we ARE really sure about is that all the bad changes are caused by American capitolism. Got it?