By 2030, unincorporated Marin must reduce greenhouse gas emissions to 60 percent below levels recorded in 2005 and, by 2045, achieve carbon neutrality. Those are the goals set by the new Climate Action Plan, which the public can comment on through the end of the month, before supervisors finalize it in December. 

The plan will replace an earlier version from 2015 and outlines a series of mitigation measures for all the sectors that cause emissions,…