How do environmental regulations affect the coal industry in the U.S.?
  • They limit coal emissions and encourage cleaner energy
How do methane leaks from natural gas infrastructure impact the environment?
  • They contribute to greenhouse gas emissions


Which energy source has seen a dramatic increase in use in the U.S. due to its lower emissions compared to coal?
  • Natural gas


Which of the following energy resources has the least environmental impact in terms of greenhouse gas emissions?
  • Wind