Stavins on Copenhagen

Robert Stavins breaks down the Copenhagen Accord in some depth. Overall he seems guardedly optimistic with what emerged at the last minute, and reminds us that
The climate change policy process is best viewed as a marathon, not a sprint.

Update: Jeff Sachs, on the other hand, is not happy (and specifically unhappy with Obama). And neither are greentech businesses, as carbon prices fall in response - definitely not a good sign for the prospects of a strong international carbon market any time soon.

Via Mankiw and Environmental Capital.

Update 2: Sachs' nemesis Bill Easterly is similarly unimpressed, but thinks expectations were far from realistic.

Regarding carbon markets, prices were down ~10% - substantial, but not an unmitigated disaster. This is a highly unscientific comparison, but note that at current exchange rates these prices are around $15/ton of CO2e, compared to a proposed cap of $28/ton in the early years of Waxman-Markey, so we are still very much in the same ballpark.

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