[omega4412]

If we’re going to have a carbon tax we ought to have a carbon tariff as well. A ton of Chinese CO2 presumably has the same effect on global warming as a ton of American CO2.

[bigheadfred]

A ton of Chinese CO2 presumably has the same effect on global warming as a ton of American CO2.

Maybe. Maybe not.

Asian brown cloud

A major source remains the barely scrubbed pollution, from both coal-fueled powerplants and manufacturing in Southern China.