June 2013
President Obama Announces the Climate Action Plan

President Obama unveils a comprehensive plan to reduce the pollution that causes climate change, including carbon pollution from power plants.

June 2014
The EPA Proposes the Clean Power Plan

To address the threat that carbon pollution poses to public health and the economy, EPA proposes a set of common sense rules to cut carbon pollution from existing power plants: the Clean Power Plan.

August 2015
The Clean Power Plan is Finalized

EPA finalizes the Clean Power Plan – the product of extensive stakeholder outreach, public engagement, and collaboration. It will cut carbon pollution from existing power plants by 32 percent below 2005 levels.

October 2015
Polluters and their Allies File Lawsuits Against CPP

The Clean Power Plan’s formal publication in the Federal Register triggers a flurry of polluter-backed legal attacks that are consolidated into West Virginia v. United States EPA

February 2016
SCOTUS Grants Polluter Stay

In an unusual move, the Supreme Court grants a request to stay the Clean Power Plan before a lower court had heard arguments on the merits of the case. This decision was not a ruling on the legal merits of the plan.

September 2016
D.C. Circuit Oral Arguments

The U.S. Court of Appeals for the D.C. Circuit hears oral arguments in the polluter-backed lawsuit against the Clean Power Plan, known as West Virginia v. United States EPA.