TOPEKA, Kan. (AP) — An environmental group is asking the Kansas Supreme Court to require state limits on greenhouse gas emissions for a new coal-fired power plant in southwest Kansas before it is built.

The court heard arguments Thursday from attorneys in a lawsuit filed by the Sierra Club in 2014 after the state Department of Health and Environment signed off on the $2.8 billion project.

Sunflower Electric Power Corp. wants to build the facility next to an existing coal-fired plant outside Holcomb.

KDHE issued a permit in 2010, just before the federal government began regulating greenhouse gas emissions. Environmentalists challenged it and in 2013, the Supreme Court sent the permit back to KDHE.

The department issued what it calls an addendum to the 2010 permit and contends greenhouse gas emissions limits aren’t required.

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TOPEKA, Kan. (AP) — The Kansas Supreme Court is reviewing a lawsuit filed by an environmental group to block construction of a $2.8 billion coal-fired power plant in the state’s southwest corner.

Attorneys representing the Sierra Club and the state Department of Health and Environment were arguing Thursday before the high court.

The Sierra Club filed its lawsuit in June 2014 after the department issued a pollution-control permit needed by Sunflower Electric Power Corp. The utility wants to build an 895-megawatt facility next to an existing coal-fired plant outside Holcomb.

The Sierra Club contends the permit wasn’t valid because the state wouldn’t regulate greenhouse gas emissions and because KDHE isn’t imposing adequate limits on other pollutants.

The agency argues the plant would meet federal and state pollution rules in place at the time.