1.   The smoke was caused by an overheated air conditioner.

2.   But marination does nothing to reduce the level of other carcinogens that arise when fat falls on a fire and causes smoke.

3.   Flickers cause smoke, and that leads to problems of soot, the airborne partially burned particles that can settle as dust or be inhaled.

4.   Investigators are also considering whether a problem with the electrical wiring on the plane caused the smoke in the cabin and cockpit.

5.   Or you might try it in a hot, dry pan on top of the stove, but that will cause smoke.

6.   Some of the fires are burning out of control, causing excessive smoke, according to Texas officials.

7.   Airline officials have not determined what caused the smoke and are investigating.

8.   Airport officials believe the smoke was caused by air conditioning problems, police said.

9.   Airline officials determined the smoke was caused by a faulty air conditioning system, Maruyama said.

10.   She said it was not immediately known what caused the smoke.