Also, they support a wide variety of leftist NGOs (Non-Governmental Organizations) almost all of which are leftist in orientation.
The enviro-whackos are importantly funded by government contracts and grants from..., you guessed it, the EPA. For example, the American Lung Association got an $800K grant from the EPA for the express purpose of suing the EPA, "forcing" it to implement tougher air-quality standards.
Similarly, for example, labor-oriented NGOs are funded by...the Department of Labor.
PETA gets money from...the Department of Fish & Wildlife.
In truth, the federal government is the biggest source of funding for the leftist NGOs. Which means the taxpayers are footing their bills. That is, to be specific, us.
Slowly, but surely, the Bush administration has been cutting off contracts and grants, defunding the rascals.
Which is one of the little noted reasons for all the panicked screaming coming from the loony left...