 but presumably somewhere deep in that is the response time between the carbon dioxide and the climate so in a sense looking back that far you think still will tell us of what we're doing to the planet now yeah we think co2 is implicated in that we think co2 is maybe one of the reasons that we hardly slowed down but we don't have the co2 record yet therefore that's why we were so desperate to drill all these new ice cores and in the lab when you bring it back i'm going to get this out