Chris Green, professor of economics from McGill University of Montreal, to speak on "Stabilizing Atmospheric Carbon Dioxide: What Will it Take?" on Wednesday, July 10, at the ÀÖ²¥´«Ã½ at Boulder. Green's talk will begin at 3 p.m. in the Cooperative Institute for Research in Environmental Sciences auditorium, room 338. The event is free and open to the public, and is sponsored by CIRES' Center for Science and Technology Policy Research.