As investors give up on a Mississippi carbon-capture coal plant and the Trump administration continues to push for “beautiful clean coal,” a bipartisan group of senators on Wednesday reintroduced a bill to expand a tax credit in hopes of spurring investment in the costly technology.

The measure, with co-sponsors ranging from climate hawk Sen. Sheldon Whitehouse, D-R.I., to coal-state stalwart Sen. John Barrasso, R-Wyo., would extend and enhance a tax credit, known as Section 45Q, that rewards facilities that capture carbon emissions for either storage or enhanced oil recovery purposes.

“For too long, discussions about coal and carbon emissions have been partisan and divisive,” said Sen. Heidi Heitkamp, D-N.D., who has led the 45Q effort in the Senate. “But this bill shows that by bringing together a strong bipartisan group of senators — as well as coal companies and environmental groups — it’s possible to find a realistic, compromise path forward for this reliable, redundant power source.”

The bill would increase the value of the tax credit, counting the carbon captured for enhanced oil recovery at $35 per metric ton — up $25 from the current value — and $50 per metric ton of for carbon captured for storage — up $30 from current value. It also includes measures to make flexible the requirements for qualifying for the credit.

The lawmakers argued the current credit levels are not high enough to attract financing for a technology that has struggled with keeping costs low.