(J. David Ake | The Associated Press) In this July 27, 2018, file photo, the Dave Johnson coal-fired power plant is silhouetted against the morning sun in Glenrock, Wyo. Jeremy Grantham, a British billionaire investor who's a major contributor to environmental causes, will fund carbon-capture research in Wyoming, the top U.S. coal-mining state. Wyoming's Republican governor, Mark Gordon, and the carbon-capture technology nonprofit Carbontech Labs announced Thursday, March 28, 2019, they're providing $1.25 million to help researchers find ways to turn greenhouse-gas emissions into valuable products.