Oregon Physician Assisted Suicide Case and State Efforts to Protect Public Health and the Environment

Does the Supreme Court's decision in Gonzales v. Oregon foreshadow success for states which choose to address environmental problems that the federal government does not clearly address: say, for example, regulation of greenhouse gas emissions?  Certainly, the 6-3 vote is promising.  Physician Assisted Suicide 

Note also: Scalia and Thomas -- so devoted to protecting state power and limiting the exercise of Commerce Clause -- again vote against the states.