human
I've heard that the smog in Los Angeles is getting worse. What is being done to clean up the air?
assistant
The California Air Resources Board has been working on a number of initiatives to reduce emissions and improve air quality, including increasing the use of renewable energy sources such as wind and solar power, improving fuel economy standards for cars and trucks, and investing in cleaner technologies like electric vehicles and natural gas vehicles. Additionally, the state has implemented stricter regulations on vehicle exhaust and other pollutants, which are expected to have a positive effect on air quality.