OP is thinking of people who bumper sticker "Believe Science" but never took science beyond grade school or a required "science for poets" class. People who think "chemicals are bad, but organic is good".
These are not bad people, but they don't know what they're talking about enough to form their own opinions, but they don't know that.
You're perhaps talking about the downstream effects of sunsetting nuclear energy but even since then, the ratio of renewable energy has only increased. So what do you mean exactly?
They barely made it into parliament at all most elections, hovering around 5% in 2002 and 2006 and well below 10% after that until 2021. I think you might be giving them too much credit.
Sorry, it was vegan gas, not organic. They stopped labelling it that way, obviously, after being thoroughly ridiculed. It’s difficult to find references to it now, but some articles from that time (2020-2022 I think) remain, e.g. https://www.listennotes.com/podcasts/decouple/greenpeace-sel...
There might be some traces of it in the Internet archive.
I get why people laught at it but let’s not forget anaerobic digestion reactors do produce methane from manure and last centuries oleoindustrie was using tons of cetacean fat, so vegan gaz is not litterally meaningless.