How air capture could help to promote a Copenhagen solution

摘要

SIR-Your News Feature 'Sucking it up' (Nature 458,1094-1097; 2009) reports on the issue of the capture of carbon dioxide from air. This is timely, as in February this year, President Obama and the Canadian Prime Minister, Stephen Harper, agreed to work together on carbon capture and sequestration as part of an effort to build a North American environmental and energy accord. US and Canadian government funding for 'carbon capture and storage' (CCS) projects has ballooned during the past six months, and in May the US energy secretary, Steven Chu, announced CCS funding of $2.4 billion, which specified for the first time "CO_2 capture from the atmosphere".