Obviously both are important. The biggest absolute polluters must cut back. But the highest per capita emitters have the biggest room for easy improvement. It'

Obviously both are important. The biggest absolute polluters must cut back. But the highest per capita emitters have the biggest room for easy improvement. It's like the debate over water in the West. 80% of water goes to agriculture, so they make the biggest splash and there's no way to cut water usage in half without improving agriculture. But of the 7-20% that goes to residential, half is used on lawns, which is a luxury good. And speaking of lawns, we generate quite a lot of emissions taking care of them.