My main grip with the tree huggers and animal rights crowds is how they deify the works and elements of God's creation and ignore their Creator as though He does not exist nor has ever existed. A more modern rant against the environmental movement far better than anything I could write here. It was done some years ago by the late George Carlin and called "The Earth is Fine" or "Save the Planet." It can be found on YouTube here.
http://www.youtube.com/watch?v=eScDfYzMEEw
To paraphrase Mr. Carlin, there's nothing wrong with the Earth, it's the people that are more of a problem. My next gripe with these tree huggers is how their solutions to the problems they wring their hands over is usually cloaked efforts to strip us all of freedom. Of course, the elites and well-to-do environmentalists don't want to lower their standard of living, just make the rest of us live like that, preventing oil drilling in the US and making it harder for coal firing power plants to operate, since radical Democrats hate fossil fuels but have nothing efficiently economical enough to replace it with. So you and I can live in a straw hut and burn peat moss for warmth in the winter during the next ice age, while Al Gore and his elitist ilk still fly around in private jets trying to save the world and live in mansions whose electricity bills are larger than more than one of ours put together.
Screw Earth Day and the marxist/progressive impulses behind it.