About environnemental groups

[lost_wanderer]

Is there any environnemental groups or organisations worthy of investing time and money?
Is groups like greenpeace any good?
I think it is better to work locally  but sometimes local groups are to powerless against multinational corps.
What are your thoughts?

[crow]

Greenpeace is a left-wing busybody corporation obsessed with power.
A bunch of lunatics.
Be your own group. Care for stuff on a personal level.