Two interesting (and opposing) takes on Copenhagen from two of the top climatologists in the world.
First we have Stephen Schneider’s take, which is decidedly optimistic:
And now we have James Hansen who thinks that the type of deal likely reached at Copenhagen is worse than no deal at all.
AT the international climate talks in Copenhagen, President Obama is expected to announce that the United States wants to reduce its greenhouse gas emissions to about 17 percent below 2005 levels by 2020 and 83 percent by 2050. But at the heart of his plan is cap and trade, a market-based approach that has been widely praised but does little to slow global warming or reduce our dependence on fossil fuels. It merely allows polluters and Wall Street traders to fleece the public out of billions of dollars…
Yet cap-and-trade schemes are still being pursued in Copenhagen and Washington. (Though I head the NASA Goddard Institute for Space Studies, I’m speaking only for myself.)
To compound matters, the Congressional carbon cap would also encourage “offsets” — alternatives to emission reductions, like planting trees on degraded land or avoiding deforestation in Brazil. Caps would be raised by the offset amount, even if such offsets are imaginary or unverifiable. Stopping deforestation in one area does not reduce demand for lumber or food-growing land, so deforestation simply moves elsewhere…
There is a better alternative, one that would be more efficient and less costly than cap and trade: “fee and dividend.” Under this approach, a gradually rising carbon fee would be collected at the mine or port of entry for each fossil fuel (coal, oil and gas). The fee would be uniform, a certain number of dollars per ton of carbon dioxide in the fuel. The public would not directly pay any fee, but the price of goods would rise in proportion to how much carbon-emitting fuel is used in their production.
All of the collected fees would then be distributed to the public. Prudent people would use their dividend wisely, adjusting their lifestyle, choice of vehicle and so on. Those who do better than average in choosing less-polluting goods would receive more in the dividend than they pay in added costs.
Both points interviews are well worth watching/listening to.