Appeals court to EPA: You just keep on regulating greenhouse gas:
grist.org

…The Wall Street Journal called the decisions “a blow to an array of industry groups”; Politico declared them ”a surprisingly sweeping win.” In short: very good news…
1. The Court determined that the EPA absolutely has authority to regulate greenhouse gases as a pollutant.
2. Even if there were uncertainty about climate science – the argument advanced by the petitioners — the entire point of the EPA regulations is to be proactive in addressing problems.