The U.S. Supreme Court’s new term, which already offers controversial challenges involving abortion, affirmative action, punitive damages and global warming, promises to add significantly to the emerging portrait of the newly constituted Roberts court.

The justices will open the 2006-2007 term on the traditional first Monday in October — Oct. 2 — but in an untraditional way. There will be no oral arguments because of the Jewish holy day, Yom Kippur.