00334pab a2200121 454500008004000000100002500040245006600065260000900131300001300140362000800153650002200161773002900183180718b2006   xxu||||| |||| 00| 0 eng d  aNordhaus, William D.  aAfter Kyoto: alternative mechanisms to control global warming  c2006  ap.31-38.  aMay  aGreenhouse effect  aAmerican Economic Review