sour grapes

Areas suitable for growing premium wine grapes could be reduced by 50 percent — and possibly as much as 81 percent — by the end of this century, according to a study Monday in Proceedings of the National Academy of Sciences.

The main problem: an increase in the frequency of extremely hot days, according to Noah Diffenbaugh of the department of earth and atmospheric sciences at Purdue University.

CBS News, 10/7/06