A draft of the county’s 2014 Climate Action Plan, an update to a 2006 plan to reduce the county’s energy footprint and adapt to inevitable climate changes, is open for public comment through Oct. 6. The plan outlines goals for reducing greenhouse gas emissions in both unincorporated Marin and in the county’s municipal activities. By 2020, the county aims to cut unincorporated emissions to 30 percent below 1990 emission levels, and county government emissions by 15 percent below 1990 levels. (Unincorporated emissions are already lower than 1990 levels, the plan says, but municipal emissions are slightly higher.) About 35 percent of all unincorporated emissions come from the energy use from buildings, 35 percent come from road transportation, and another 23 percent come from agriculture. Commuting comprises almost half of greenhouses gases created by municipal activities. Some of the reductions can be met through state initiatives, but Marin also plans to create more incentives for wiser energy use, carpool programs and methane digesters on agricultural lands, which have been installed on two dairies in West Marin in the past decade, along with a host of other programs. If the county meets its 2020 goals, the plan says, the reduction in greenhouse gases would be akin to using over 11 million fewer gallons of gas per year. The county will hold a public workshop on the plan on Oct. 6 at 6:30 p.m. at the Marin Center Exhibit Hall (10 Avenue of the Flags), in San Rafael. Advance registration is requested to planner Omar Pena at opena@marincounty.