Anyone who calls themself a climate change activist and supports shutting down nuclear plants is - well, I prefer not to use invective on HN, so let's say extremely misguided.
We had a Greens candidate here running for election, and his main campaign promise was to shut down a 10+ billion dollar motorway underpass that was 99% completed at the time of the election.
His approach for "saving the environment" is to convert efficient motorway travel into inefficient stop-start traffic. And to throw away tens of billions of dollars of already spent resources.