When it comes to US power sector emissions, the closing of coal plants lowers emissions, and the deployment of wind, solar, and storage in substitution preserves those lower emissions. Increased use of NG in the power sector does not lower emissions.

I say this because many smart observers like @mattyglesias have lapsed into thinking that it's the NG that helps us lower the emissions, because NG does indeed have lower emissions than coal. Have you seen the rising emissions chart from US NG in the US power sector? /2