11.   When temperatures start rising, air conditioners will begin working around the clock, meaning power plants will burn more fuel.

12.   When winter temperatures start to drop, only the resourceful stay warm in Russia, where cold weather kills hundreds of people each year.

13.   But as temperatures start to cool, a seasonal increase in demand for heating oil should help keep prices high.

14.   Forecasters noted temperatures started falling Tuesday and were expected to drop further Wednesday.

15.   Normally, the natural clock causes the body temperature to start falling during the evening hours and then to rise just before dawn.

16.   Temperatures should start moderating on Wednesday, with more noticeable improvement on Thursday, forecasters said.

17.   Forecasters said temperatures should start rising again in the next few days as milder Pacific air moves in, pushing the cold front toward the Atlantic.

18.   Fears are growing for the people of Sarajevo as the besieging Bosnian Serbs tighten their grip on the city and temperatures start falling with the approach of winter.