1.   They are cooled by water taken from the river Yenisey, which is then discharged back into the river, in contravention of recently-passed environmental legislation.

2.   Another reason for the cold room is that the boiler is far from the baseboards, and water may cool by the time it reaches the family room.

3.   As surface water cools, it becomes more dense, sinks and is replaced by warmer water from below.

4.   As surface water cools in winter, it becomes dense and sinks, with slightly warmer water from below rising to the surface to replace it.

5.   As surface water cools, it becomes denser, sinks and is replaced by warmer water from below.

6.   Also, they would significantly reduce air pollution and require less water to cool their turbines.

7.   If your old tank was galvanized metal or stainless steel, the water probably cooled enough at night to prevent algae growth.

8.   If the water cools before you can serve the pasta, place the pot back over high heat.

9.   It may take a bit of experimenting at each stage to see if the water has cooled sufficiently before being frozen to achieve the desired clarity.

10.   Let the water cool naturally to condition the flowers.