AB 1279 (Muratsuchi) The California Climate Crisis Act, declares the policy of the state both to achieve net zero greenhouse gas (GHG) emissions as soon as possible, but no later than 2045, and achieve and maintain net negative greenhouse gas emissions thereafter, and to ensure that by 2045, statewide GHG emissions are reduced to at least 85% below the 1990 levels. STATUS: APPROVED in both houses August 31; SIGNED by the Governor on September 16.