Or, put another way: why don't more public agency directors and staff, especially those working on climate and air quality issues, use - or encourage - active transportation?
Researchers found evidence that increased use of natural gas and vehicle fuels are contributing to worsening air quality. Wildfires are a factor, but don't explain the increase.
The climate crisis is messing with transportation planning and engineering, and transit agencies are learning to adopt electric vehicles while ridership falls