California's environmental laws are often called burdensome, but a new report says they could save us billions of dollars. 

Environmental and health advocates came together on this one to issue research that shows the state's cap-and-trade law and a measure to encourage alternative fuels could add up to $10 billion dollars worth of savings by 2020.

That comes mostly through medical problems being averted -- fewer hospital visits from pollution -- and lower oil consumption overall.

Advocates say this is what voters asked for, and what they deserve.

Some business groups, including the California Chamber, are not exactly onboard with the research.

They see the regulations as overreach, that's costing them money and hurting job creation.