Cleveland-Cliffs recently scrapped a plan to convert a steel mill from fossil fuels to hydrogen, which would have ...

Environmentalists are petitioning the U.S. Environmental Protection Agency to object to an air permit Indiana recently renewed for the Cleveland-Cliffs Indiana Harbor Works steel mill in East Chicago.

No specifics have been released yet. Gary, Indiana Mayor Eddie Melton has said Nippon Steel plans to pump $1 billion into the U.S. Steel Gary Works — the largest U.S. Steel mill in the country.