Greenhouse Gas Emissions

Plastics are the most sustainable option. Food suppliers are decades away from other material that performs as well at food safety and waste.

With some California gas prices topping $5 a gallon, anything that pushes prices even higher, like emissions crackdowns, will become a political football.

California trucks much of its organic waste to landfills instead of recyclers, largely because of an exclusive franchise hauling system.

Trump rescinded the legal foundation for U.S. climate policy. California is preparing to sue — and may try to write its own rules.

Revenues from the state's carbon emissions auction will be used for high speed rail, wildfire suppression and legislators' discretionary spending.

California state officials are in Brazil for the annual United Nations climate conference. The visit highlights California’s role as a climate leader and supports its environmental policies, especially since the U.S. has no official federal delegation. However, some critics question whether the trip is worthwhile because California lacks the power to make international agreements.

At the state’s top air regulator, Lauren Sanchez will replace Liane Randolph, taking the helm as California battles Trump, rising costs, and the future of its climate agenda.

California’s Assembly Appropriations Committee killed “Leno’s Law” that aimed to give classic car owners like him a pass from smog requirements.

Proposed amendments to the Low Carbon Fuel Standard program fall short of the goals of transparency, equity and responsible policymaking, says a member of the California Air Resources Board.

Bikers — many of whom love their noisy combustion engines — say zero-emission motorcycles aren’t ready for long-distance rides. Motorcycles emit an “outsized portion” of smog-causing pollutants.