"The 2024 standards required existing coal plants and new gas plants to capture 90 percent of carbon emissions or shut down by 2039, which would have reduced carbon pollution by an estimated 1.38 billion metric tons through 2047"
Before the 2024 Carbon Pollution Standards, the federal limits were much weaker—and for existing power plants, there was effectively no operative federal CO₂ limit at all.
> Before the 2024 Carbon Pollution Standards, the federal limits were much weaker—and for existing power plants, there was effectively no operative federal CO₂ limit at all.
This is an exaggeration that stretches credulity, since there have been strict limits for decades around secondary outputs that are required by power plant energy production effectively limiting production and emissions (which is the entire point).
With the rollback, that reduction will no longer occur. So, this is significant.