*#A peer-reviewed scientific paper says it's [[water vapor]]<ref>"Water vapor is the most important greenhouse gas ..." [http://thejll.com/Frascati/ReichelThejllLassenSCL.pdf] </ref> | *#A peer-reviewed scientific paper says it's [[water vapor]]<ref>"Water vapor is the most important greenhouse gas ..." [http://thejll.com/Frascati/ReichelThejllLassenSCL.pdf] </ref> |