Well, with all that acid, I'm totally staying out of 'climate change'. This is a religious argument with no measurements.
Climate has changed wildly in the past? -- Obvious proof of climate change.
It's getting colder? -- Obvious proof of climate change.
Today's carbon dioxide level is nothing? -- Obvious proof of climate change.
So no matter what new evidence shows up, it proves that co2 is causing bad things and has to be reduced. It's a great position to be in - somewhat like engineers and seismic analysis. At least earthquakes are honest when they hit. :)