[gberger]

Right, but the Brazilian government will most likely act in a way as to preserve itself as a single country.

[adrianN]

Which is why I'm in favor of external pressure, for example in the form of trade sanctions.

[Mirioron]

So you'd also be okay with trade sanctions on the US over their CO2 output? Or does this only go one way, where poor countries have to do the best for the world while your country can do whatever they want?

[adrianN]

Yes I would be okay with trade sanctions based on GHG emissions. That's how you would implement a carbon tax, you need tariffs for countries that don't want to join the tax system.