That's too easy. Christians represent morals and standards of conduct with their faith in Jesus and God. Democrats, ala the ACLU and all the other organizations associated with them, disavow such standards, morals or ethics. Hence, Rush's comments about how environmentalism has become the left's version of religion. Or, multiculturalism. Or anything else specifically opposite of God or Jesus.
The sad thing is that because of this Christians who obviously do have a concern for the environment feel that they cannot get involved. We are charged in the bible to be custodians and also to be master of nature but feel we cannot get involved in conservation because of the are well out left wing wackos and obviously do not want to be linked or associated with them.
IMHO because of this true commonsense conservation is not being done because conservatives are reluctant to get involved and almost feel they have to come out against it.
A crazy sad situation.