Coal is used to produce electricity by burning in coal-fire power stations, and coal-fired power stations can cause acid rain and contribute to global warming. Given these facts, certain types of electricity production can cause acid rain and contribute to: among the following options:
- global cooling
 - global warming
 - energy usage
 - coal mining
 - deforestation
 - electrical
 - Destroy bridges
 - salinity


 

  global warming       