By Thea Riofrancos, Alissa Kendall, Kristi K. Dayemo, Matthew Haugen, Kira McDonald, Batul Hassan, and Margaret Slattery in partnership with the University of California, Davis - Climate and Community Project, January 2023

Transportation is the number one source of carbon emissions in the United States– making the sector crucial to decarbonize quickly to limit the climate crisis. States like New York and California banned the sale of gas cars by 2035 and the 2022 Inflation Reduction Act made major federal investments in electrifying transportation. As a result, US consumers are embracing electric vehicles (EVs), with over half of the nation’s car sales predicted to be electric by 2030. This is a critical juncture. Decisions made now will affect the speed of decarbonization and the mobility of millions. Zero emissions transportation will also see the transformation of global supply chains, with implications for climate, environmental, and Indigenous justice beyond US borders.
A crucial aspect of electrified transportation is new demand for metals, and specifically the most non-replaceable metal for EV batteries– lithium. If today's demand for EVs is projected to 2050, the lithium requirements of the US EV market alone in 2050 would require triple the amount of lithium currently produced for the entire global market. This boom in demand would be met by the expansion of mining.
Large-scale mining entails social and environmental harm, in many cases irreversibly damaging landscapes without the consent of affected communities. As societies undertake the urgent and transformative task of building new, zero-emissions energy systems, some level of mining is necessary. But the volume of extraction is not a given. Neither is where mining takes place, who bears the social and environmental burdens, or how mining is governed.
This report finds that the United States can achieve zero emissions transportation while limiting the amount of lithium mining necessary by reducing the car dependence of the transportation system, decreasing the size of electric vehicle batteries, and maximizing lithium recycling. Reordering the US transportation system through policy and spending shifts to prioritize public and active transit while reducing car dependency can also ensure transit equity, protect ecosystems, respect Indigenous rights, and meet the demands of global justice.
Read the rest of the summary here.