"Lets get the data sorted out"<p>The data HAS been sorted out, by people who have spent the better part of their lives studying climatology. And among the group that has spent the most time studying Earth's climate, there is broad consensus that a) Earth's climate is warming and b) increased CO2 levels from human activities is the primary cause.<p>The great thing about this debate, if you're a lobbyist for industrial groups opposing any action to limit CO2 on financial grounds, is that you don't have to prove all those people wrong. You just have to cloud the issue enough to create the illusion of debate over points a and b. It's the PR equivalent of 'reasonable doubt'.