EU court rules nuclear energy is clean energy

I believe Greenpeace leaders and activists genuinely consider themselves environmentalists. As an organization, Greenpeace is also pretty strict on declining funding that could compromise its independence.

However, it's likely that Greenpeace benefits from indirect support from the fossil fuel industry and petrostates. If you get too deep into Realpolitik, you start believing that ideologies and convictions only hinder and weaken you. Then it becomes acceptable to support groups that are ideologically opposed to you, as long as it advances your strategic interests. There have always been ways of manipulating the public sentiment, and social media has made it easier to do that without linking the manipulation back to you.