Mountaineer GigaSystem would produce blue hydrogen from natural gas and store CO2 emissions underground on state-owned property, with its first phase to open in 2028. 

Proposed EPA mandate's reliance on hydrogen and carbon capture evoked concern in comments sent by an Aug. 9 deadline, but supporters say investment in clean transition approaches already are well underway. 

HeidelbergCement unit launches feasibility study to install technology to capture and store almost all carbon emissions for potential resale on the market.