Fact 1: Gases released during the use of fossil fuels causes global warming.

Fact 2: Global warming causes ice storms.

Given the two facts above, answer the question "What causes ice storms?" with the following options: 
- colder weather
 - Fossil fuels
 - heat energy
 - a hydraulic system
 - Water expanding
 - salt and water.
 - erosion
 - less water


 

  Fossil fuels       