[aboutruby]

Wouldn't that push countries to cut a lot of trees to then have the highest bidder willing to reduce carbon emissions pay a premium?

[Gpetrium]

You raise a valid point, Brazil may be an interesting test-case for the point you have raised. The new government shows strong interest in cutting down the Amazon (at least partially) for the sake of Agribusiness, Cattle & Logging. Now will they use Amazon and the way the world perceives it as a way to exchange concessions? It remains to be seeing.