Staff Blog
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Gray, blue, or moo hydrogen? How gas companies are milking California’s LCFS
Avoided methane emissions from out-of-state dairy farms are fueling a burgeoning shadow carbon offsetting scheme within the California LCFS
Will California rise to the Biden administration’s SAF Grand Challenge?
Although sustainable aviation fuels have faced some stumbling blocks, several measures are available to support SAF scaleup
Sustainable aviation fuels: What does real leadership look like?
Argues that in the effort to ramp up production of sustainable aviation fuels, mandating their use is smarter than subsidizing their production.
Zero cheers for the supersoynic renaissance
Assesses the environmental impact of supersonic aircraft in light of U.S. support for alternative jet fuels produced from crops like soybeans.
E-fuels: The magic lollipop to keep combustion engines alive (or not)
Will newly introduced language in a European Council agreement weaken the 2035 phase-out and keep combustion engines alive?
The tortoise and the hare? The race to decarbonize aviation
Explores whether aviation emissions can be greatly reduced if air traffic returns to its pre-pandemic rapid growth.
Flying on the Grid
Argues that unless alternative aviation fuels are produced using additional and renewable electricity, their use will not necessarily decarbonize aviation and could actually increase aviation’s GHG emissions.
Hungry Hungry Airlines
Critiques the Biden Administration’s approach to development of sustainable aviation fuels (SAFs) and suggests an alternative path.
Drafting the future of clean hydrogen: Build Back Better with an additionality requirement
U.S. policymakers can strengthen the hydrogen tax credit in the Build Back Better Act by including an additionality requirement.
U.S. biofuels policy: Let’s not be fit for failure
With recent, encouraging advancements in EU biofuels policy, maybe it’s time for a whole new vision for U.S. policy.
Don’t let the industry greenwash green hydrogen
Certifying that hydrogen and efuels are produced from 100% additional renewable electricity is not as simple as it seems.
A step forward for “green” methanol and its potential to deliver deep GHG reductions in maritime shipping
“Green” methanol can provide deep greenhouse gas reductions, but not all methanol is climate friendly, and marine policies should incorporate full life-cycle accounting of emissions.
