Why Natural Gas?

California is a major global goods movement hub with massive port complexes, expansive warehouse distribution centers, and sprawling agricultural industry. In addition, with nearly 40 million residents, California has a booming service industry, including public transportation, waste management, and schools.


The California Landscape

Nation’s Worst Air Quality

California’s progressive air quality and climate protection policies are driven by its long history of air pollution. The three main factors behind the unhealthy air quality in California are:

  • Pollution caused by the activities of the nearly 40 million residents (12.5% of the U.S. population);
  • The topography (i.e., mountains and valleys) traps pollution; and
  • The warm, sunny climate helps form ozone and other air pollutants.

Several counties remain out of compliance with federally mandated standards for healthy air. In fact, 9 out of 10 of the nation’s most ozone-polluted counties are in California.*

Living in areas with poor air quality increases the risk of:

  • Asthma
  • Lung Cancer
  • Heart Disease
  • Premature Death

#1 Source of Harmful Emissions

In several California regions, including the Central Valley and South Coast air basins, the transportation sector is the number 1 source of toxic air contaminants and ozone-forming emissions of nitrogen oxides (NOx). Transportation plays an important role in the state, as California is home to some of the world’s largest seaports, thousands of warehouse distribution centers, and the nation’s largest agricultural industry.In addition, the state’s 40 million residents are serviced by large-scale public transportation and waste management industries.

The engines that power these sectors are often diesel engines. Many on the road today, don’t meet the EPA’s current emission standards.


*“State of the Air.” American Lung Association, 2017.