Some of the worst carbon emission come from heavy industry, so it’s a welcome development to see U.S. Steel attempting to capture carbon. Last week the Department of Energy announced $6 billion in funds to help clean up some of most intensive greenhouse-gas industries, including $1.5 billion to transform iron and steel manufacturing, but U.S. Steel, one of the biggest American steelmakers was not among the recipients.

Researchers at the Rhodium Group have eleven answers.

The Biden administrations Inflation Reduction Act helps regulate carbon pollution from power plants and cars and trucks. Progressive states such as California, New York, and Illinois responded by passing tougher climate laws of their own. To reach the Paris Agreement goal of cutting carbon emissions in half at the end of this decade, where will America’s remaining greenhouse gas emissions come from? What should climate policy focus on next?