From Greenpeace founding member Patrick Moore...

The collapse of world communism and the fall of the Berlin Wall . . . added to the trend toward extremism. The Cold War was over and the peace movement was largely disbanded. The peace movement had been mainly Western-based and anti-American in its leanings. Many of its members moved into the environmental movement, bringing with them their neo-Marxist, far-left agendas. To a considerable extent the environmental movement was hijacked by political and social activists who learned to use green language to cloak agendas that had more to do with anti-capitalism and anti-globalization than with science or ecology. I remember visiting our Toronto office in 1985 and being surprised at how many of the new recruits were sporting army fatigues and red berets in support of the Sandinistas.