New regulations to slash emissions and deliver 1.4 million electric and hybrid cars on to the roads
Innovative energy data initiative to help drive efficiency gains
Sustainable Winegrowing Alliance trialling measures to help wineries record and communicate their environmental impacts
Search giant reveals annual investment in clean energy is approaching $900m
Air Resources Board votes to streamline Low Carbon Fuel Standard but oil companies warn new rules are unfeasible
State aims to have 1.4 million electric, hybrid and hydrogen cars by 2025 as well as reduce emissions by 52 million tonnes
Sage of Omaha's MidAmerican Energy Holdings Company buys 550MW California plant from First Solar
Regulators approve long-awaited state-wide emissions trading scheme
California Air Resources Board expected to confirm launch plans for cap-and-trade scheme