Image via Wikipedia"Studies of the genetic and environmental epidemiology of autism to determine risk and protective processes in the etiology of autism…
So, yes, environmental causation is being funded. Also under epidemiology:
studies of their developmental course across the life-span
Autism Blog - U.S. Government calls for proposals in autism research � Left Brain/Right Brain
For the full text of the proposal...
This is good and much needed: an understanding of how autistics develop across the lifespan. This is not, after all, a childhood disorder.
Yes, there is funding for treatments, specifically “Pharmacological/Biological Interventions”. These include the opportunity for the alternative medical community to prove itself to the scientific world:
"studies aimed at developing and testing the efficacy and safety of botanical and dietary supplemental CAM agents that specifically target symptom management" -- CAM = Complementary Alternative Medicine.
I think it is a good way to find out definitively what effects the environment has on autism and also to do the studies on alternative medicine (maybe that might lead to more alternative medicine getting covered by the insurance companies).