The pace of capacity additions for U.S. biofuel production slowed in 2024, with production capacity increasing by a modest 3% from the start of 2024 to the start of 2025, according to our latest biofuels production capacity reports. A deceleration in production capacity in our category renewable diesel and other biofuels accounted … [continued]
ChatGPT generated panoramic image of California’s Capitol in Sacramento with symbolic fuel pump and green leaf overlays, representing the Low Carbon Fuel Standard and state policy drivers
In a recent article, California Refineries Close as Gasoline Demand Slips into Permanent Decline, I wrote that diesel consumption in California had not declined even as gasoline demand slipped. Jeremy Martin from the Union of Concerned Scientists reached out to me to point to some data I’d missed. I reviewed … [continued]
U.S. imports of biodiesel and renewable diesel significantly decreased in the first half of 2025 (1H25) compared with the same period in previous years. This decline is primarily due to the loss of tax credits for imported biofuels and generally lower domestic consumption of these fuels. Renewable diesel and biodiesel … [continued]
ChatGPT generated: A hybrid cargo ship at port, clearly labeled with "HYBRID," "BATTERIES," and "BIODIESEL," symbolizing the convergence of pragmatic low-emission technologies in maritime transport
Maritime shipping, responsible for approximately 3% of global greenhouse gas emissions, stands at an unprecedented turning point. As we progress toward mid-century, decarbonization is no longer optional but mandatory, driven by stringent international regulations, including the International Maritimate Organization’s recent fuel carbon pricing decision and corporate sustainability commitments. This requirement … [continued]
ChatGPT generated panoramic image of a port skyline with a large containership plugged into a grid connection, battery icon glowing, and a stack labeled “Synthetic Fuels Deferred”
In April 2025, the International Maritime Organization did something rare for a UN body: it passed a binding climate policy. Not advisory, not aspirational, but actual mandatory rules. The agreement commits international shipping to net-zero greenhouse gas emissions “by or around 2050,” and despite the ambiguity of that phrasing, the … [continued]
Biofuels for diesel engines can be made much more efficiently, according to researchers at Washington University in St. Louis.
Annual U.S. biodiesel imports doubled from 2022 to 2023 to 33,000 barrels per day (b/d) and continued to rise in the first two months of 2024, according to the most recent data available. Much of the increase in biodiesel imports has come from Germany, and the remaining increase has come mostly from … [continued]
California accounts for nearly all renewable diesel consumption in the United States, but most of it isn’t made in the state. California’s consumption of renewable diesel was more than eight times the amount produced there in 2021. Instead, most of California’s renewable diesel was produced in other states or was imported, mostly from … [continued]
We don’t need to make 25 times as much biofuel, we need to make perhaps four or five times as much as we do today. And we have to stop wasting it on ground transportation.
By Miguel R.L. (aka Lambda), ETH Zürich engineer Time is fast running out to keep global surface temperatures below the 1.5°C limit we have set for ourselves. In fact, we are now headed for a catastrophic 2.7°C surface temperature rise by century’s end. Much has been written about decarbonizing ground … [continued]
