"Republican leaders of the House Energy and Commerce Committee on Wednesday threatened to subpoena the U.S. Environmental Protection Agency to obtain documents related to rules on carbon pollution from power plants.

Committee Chairman Fred Upton and Oversight and Investigations Subcommittee Chairman Tim Murphy wrote to EPA administrator Gina McCarthy, saying that despite meetings between committee staff and EPA staff, "EPA has been wholly unresponsive to the committee."

The lawmakers have argued that the EPA's proposed carbon emission performance standards for new coal-fired power plants are not valid because they require the installation of carbon capture and storage (CCS), a technology that is currently not available on a commercial scale in the United States."

Valerie Volcovici reports for Reuters July 10, 2014. [2]