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In order to decarbonize electricity, reducing carbon intensity of
electrical power generation will not allow the goals to be met.
Carbon capture from flue gases will be required to meet the current
total emission reduction goals. Geological storage and monitoring
of purified carbon dioxide from flue gases has proven infeasible
and to have limited geographic applications. Carbon capture and
re-ulilization for applications in the built environment such as
carbonate cements and aggregates, especially for roadways, promises
to be the most available method of large scale carbon dioxide
capture, and is both economically and technically sustainable.
Collaboration between CARB and CalTrans could forge a link between
emission reduction goals and re-utilization of carbon dioxide from
emitters for carbonate cement and aggregate products for use in
road construction projects.