"WASHINGTON -- A dozen states and cities and three major environmental groups have notified the Environmental Protection Agency that they plan to sue the regulator unless it issues final rules limiting greenhouse gas emissions from new power plants."

"On Monday, the EPA confirmed that it had missed an April 13 deadline to issue final rules curtailing emissions of carbon dioxide from power plants, the country’s single biggest source of heat-trapping gases that drive climate change. The jurisdictions and the environmental groups sent separate letters to the EPA. But each letter notified the regulator of the groups’ plan to sue after 60 days, if the EPA did not expedite the rules.

In a reply, the EPA declined to set a deadline for releasing the final regulations on the plants. “We are working on the rule and no timetable has been set. We continue to review the more than 2.7 million comments we have received on the rule,” spokeswoman Alisha Johnson said."

Neela Banerjee reports for the Los Angeles Times April 17, 2013. [2]