The hottest climate policy news this week is something the Supreme Court didn't do: freeze Joe Biden's big carbon emissions rules for power plants. Why it matters: The rules target a huge CO2 source — existing coal plants and future gas plants — and avoided being quickly forced into hibernation.

The Supreme Court declined to block an EPA rule limiting carbon emissions from coal- and gas-fired power plants, allowing the regulation to go into effect.

The Supreme Court rejected requests for emergency relief from more than two dozen states and the energy industry.