Half the Oil? UCS looks at driving down petroleum usage on the US West Coast

California findings

The alternative cases in California, focusing on efficiency and electrification, biofuel deployment, and travel demand reductions individually yield petroleum reductions in the range of 31–45 percent compared to a 2015 baseline.
ICF reports a range of greenhouse gas emission reductions for each case based on lifecycle emission factors or carbon intensities for each transportation fuel (with considerations unique to California).

For the HtO Pathway in California, we estimate a range of 37–43 percent reductions in carbon emissions from a 2015 baseline; and for the alternative cases (which do not achieve the 50 percent petroleum reduction target), we estimate reductions of 27–41 percent from a 2015 baseline.

Oregon findings

The alternative cases in Oregon, focusing on efficiency and electrification, biofuel deployment, and travel demand reductions individually yield petroleum reductions in the range of 14–39 percent compared to a 2015 baseline.

We estimate greenhouse gas emission reductions of 31–39 percent for the HtO Pathway in Oregon from the 2015 baseline; whereas the alternative cases yield greenhouse gas emission reductions of 12–31 percent from the 2015 baseline.

Washington findings

The alternative cases in Washington, focusing on efficiency and electrification, biofuel deployment, and travel demand reductions individually yield petroleum reductions in the range of 14–38 percent compared to a 2015 baseline.

We estimate greenhouse gas emission reductions of 42–45 percent for the HtO Pathway in Washington compared to a 2015 baseline; whereas the alternative cases yield greenhouse gas emission reductions of 17–36 percent compared to a 2015 baseline.