(CNN)The Supreme Court has curtailed the Environmental Protection Agency's ability to broadly regulate carbon emissions from existing power plants. This is a major defeat in the Biden administration's attempt to reduce it. Emissions at the moment scientists are warning about the accelerating pace of global warming.
In addition, courts have generally reduced the authority of government agencies to call the so-called "major question" principle. This is a ruling that affects the federal government's authority to regulate in other areas of climate policy. Internet and worker safety regulations.
The decision was 6-3. Judge John Roberts wrote a conservative majority opinion, opposed by three liberal judges.
This story is broken and will be updated.
