Greenpeace, who left it in 1986 because
"[t]he environmental movement abandoned science and logic somewhere in the mid-1980s."
- Patrick Moore quoted in an interview in the New Scientist (1999), excerpted in Tom Bethell, The Politically Incorrect Guide to Science 90 (2005).
Greenspirit, Patrick Moore's website
Going Nuclear: A Green Makes the Case, from the Washington Post