Tim LaSalle at Rodale posted a nice piece in Treehugger pointing out the lack of performance criteria or monitoring in the US climate bill, and the high importance of monitoring.

"The best way to tell if a farmer’s fields are sequestering carbon is to measure annual changes in soil carbon."

http://www.treehugger.com/files/2009/07/waxman-markey-climate-bill-arent...