Greenpeace lie, deceive, spread misinformation and routinely recruit vulnerable, malleable youth who don't know better to break the law. Why would anybody want to associate with them these days is beyond me.
By 'break the law', Are you referring to Natural Law or State Law?
Mostly the body of Common Law surrounding the sanctity of private property; you know like breaking and entering, defacing buildings, vandalism, denying right of entry ... have you not noticed Greenpeace was doing these things?