Clean Fuels Alliance America hailed California’s Greenhouse Gas Inventory for 2020, which reported a 16 percent decrease in transportation carbon emissions due in part to increasing use of biodiesel and renewable diesel.

The state’s analysis notes that the percentage of biodiesel and renewable diesel in the total diesel pool grew from 0.4 percent in 2011 to 20.8 percent in 2020 through the Low Carbon Fuel Standard.

According to California Air Resources Board data, biodiesel and renewable diesel generated 44 percent of the LCFS credits in 2020.

“As California aims to continue its progress in reducing carbon emissions, it is relying on increased production, import and blending of clean fuels like biodiesel and renewable diesel,” said Donnell Rehagen, CEO of Clean Fuels. “Continued growth of the clean-fuels sector is vital to maintaining progress in meeting carbon-reduction goals and increasing climate benefits across the country.”

Without renewable fuels like biodiesel and renewable diesel, the analysis notes, California’s tailpipe-fossil CO2 would have been 15 million metric tons higher in 2020. The reduction is equivalent to taking 3.2 million passenger vehicles off the road for the year.

Floyd Vergara, Clean Fuels’ director of state governmental affairs, added, “Heavy-duty transportation is a particularly tough sector to decarbonize just like aviation, rail and marine transportation. California’s analysis demonstrates the critical role low-carbon fuels are playing to achieve carbon reductions today. Additionally, using biodiesel and renewable diesel substantially reduces particulate-matter emissions and the health impacts and costs associated with them.”

A Health Benefits Study conducted in 2021 by Trinity Consultants demonstrated reductions in cancer cases, asthma attacks, restricted-activity days, and premature deaths for communities that reduce petroleum-diesel use by using biodiesel.

The study calculated substantial savings for California communities such as San Bernardino, Oakland, South Fresno and the port of Long Beach.

“As California’s report notes, the transportation of food and essential consumer items returned to normal levels by the end of 2020, following the initial impact of the pandemic,” Vergara said. “But we can still anticipate progress in carbon reductions as California’s blend of clean fuels grew to roughly a third of the diesel pool in 2021.”