Are you looking at absolute numbers or at fraction of press releases? Because there is a big difference between the two
The amount has dropped a lot though

Quite a few states have not had their primary yet. Lots of opportunities to pick a different Democrat
The DNC, no. There isn't even a public membership list.
There are statistics for elected Democrats in Congress though. And they really did largely stop talking about climate.
The big problem I have with Substack is that the owners are pro-Nazi. But they've somehow gotten a few ok writers onto the platform.
The Hadean was not exactly conducive to human life
The paper had them literally swap out gas for electric and see a bigger improvement in patient health than standard medical treatment.
The allegations of racism started quite a few years before he openly went Nazi
Qatar used to export a lot of methane gas. It can't now. This affects electricity prices.
Shifting work hours like that is part of the idea. Changes to standards of attire are another.
Those doctors and scientists don't pay bribes. The fossil fuels industry does
Plus pouring a bunch of gasoline and ignoring that. Pretty definitely an anti-ICE protest