I'm not the one who downvoted it, but I'm about to add another, because the quote makes little to no sense without context. Who is "our" and "your"? Does "contribution" refer to CO2 emissions, or to poltiical activism, or to planning work, or to research?

People also tend to downvote pro- and anti-AGW arguments here as "mindkilling", but this one hasn't even reached that point yet. From just the quoted text I can't even be certain whether this is an anti-AGW statement (climate modelling is insufficiently detailed and data is too sparse to justify economic contributions to mitigating global warming!) or a pro-AGW sarcastic summary of an anti-AGW argument (you're ignoring our detailed data and modeling and just deciding how much CO2 we should contribute to the air!) or something I've missed entirely.