FORUM.

摘要

Ken Caldeira and David W. Keith to focus on environmental engineering in the U.S. He says that carbon dioxide recapture (CDR) and solar radiation management (SRD) technologies proposed by Keith and Caldeira are the first of the strategyoptions for greenhouse gas mitigation. He also mentions the caveats omitted, such as the possibility that these technologies will be used up, budget problem, and political and social hindrances.