Question: Use the information to answer the question. Over the last 150 years, the use of fossil fuels has increased, resulting in more carbon dioxide and other greenhouse gases in the atmosphere. Some scientists think that these atmospheric gases will result in global warming. Scientists have recorded data on global temperature changes and have predicted possible changes in sea level that may affect Maryland residents. Which action helps reduce global warming?

  Options: 
 A. developing highways
 B. driving large vehicles
 C. using renewable power sources
 D. using electricity from coal burning power plants
Answer: C