High speed rail called traffic solution

California is the 12th largest source of greenhouse gas emissions on the planet, and 41 percent of the state's emissions come from the transportation sector. Karen Maeshiro in the Daily News.

The state also has three of the five most congested urban areas, and the congestion costs the state $20 billion annually in fuel and lost time.

One solution, according to an official with the California High-Speed Rail Authority, is to build a system that would connect the state's major metropolitan areas and get people out of their cars and onto mass transit.