Over on real climate there's an interesting post "mainly about what the carbon cycle implies for policy decisions"
http://www.realclimate.org/index.php/archives/2006/11/how-much-co2-emission-is-too-much/#more-368 What I find interesting is the implicit assumption that only nature can take carbon out of the air, apparently even over hundreds or thousands of years, once humanity has stopped emitting carbon. Clearly, that is not so. We can take carbon from biomass for example and bury it. In fact, given sufficient energy, we can take carbon directly from air and bury it. I think this should feature in scenarios for future carbon levels, as should in some form the possibility of less energy intensive ways of taking out carbon (primarily I am thinking of techniques to enhance the weathering of rocks). --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
