The November 2019 staff report to the Marin County Board of Supervisors recommending adoption of the low carbon concrete ordinance. Provides background on why embodied carbon in construction materials matters as buildings approach zero net operational energy, explains the year-long stakeholder process funded by the BAAQMD, and details the two compliance pathways (cement content limits and embodied carbon limits). Includes discussion of the code's scope, exemptions, and implementation approach.
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