Getting to Science late this week but everyone should take a look at the climate science in this week's issue.

Two basic messages are apparent in this extended history of the atmosphere. First, even with this longer perspective, the modern atmosphere is still highly anomalous. At no time in the past 650,000 years is there evidence for levels of carbon dioxide or methane significantly higher than values just before the Industrial Revolution. Second, the covariation of carbon dioxide and methane with climate, strikingly evident in the Vostok record, follows essentially the same pattern in the earlier time period. The muted climate cycles (as indicated by the deuterium content of the ice) are accompanied by equally muted cycles of carbon dioxide and methane (see the figure). This relationship reinforces the view that the large-scale cycles in Antarctic temperature have global importance, and that climate and greenhouse gas cycles are intimately related.

It's impressive, we have atomospheric concentrations of methane and carbon dioxide about twice as high as they have ever been in 650,000 years and over this time period changes in greenhouse gasses have correlated perfectly with global temperature(for subscribers see the figure.) For the global warming deniers (*cough* polluters *cough*) this is pretty damning evidence, but nothing will convince them except, well, global climate change.