Not at all. That creates an effective subsidy on non-domestic production. Carbon tax on my factory in California? I’ll move it to Nairobi. Add a tariff? Then other countries retaliate and domestic companies can no longer sell their goods abroad. Domestic consumers would pay higher prices and the economy grinds to a halt due to reduced production from reduced international trade.

Ah sure. I wasn't making the point not to have a carbon tax. Just that it would help here unless carefully thought out. A bit like the biodiesel law.