Run for office, your local community, or your state gov.
Helf? Helping + Hugh "Hef" Hefner = Helf?
Unless they've become radicalized in the past couple of years, Ducks Unlimited.
I'm in your camp, I think. We were given stewardship of the Earth, to use it and care for it wisely. I can't see the care part going against conservative grain. How could it? I think this is an area of interest and concern for many (compassionate) conservatives that we've handed to liberals, and they use it against us. I'm interested in the replies, too.
The only one I'm aware of:
http://www.repamerica.org/
Good article on the conservative approach and philosophy re: the environment (or what it should be) here:
http://www.frontpagemag.com/Articles/ReadArticle.asp?ID=1278