Supreme Court divided over landmark global warming case.

“The nine-member US Supreme Court appeared split as it took up the debate over global warming, with rival lawyers arguing whether some greenhouse gas emissions should be regulated.” The AP reports that the Court’s “conservative members seemed to recoil at the idea of government regulation, while their liberal colleagues openly embraced it.” The “pivotal swing vote,” Justice Anthony Kennedy, “did not reveal where he stood.”

UPDATE: More analysis of Kennedy’s role in the case at SCOTUSBlog.