Jim Duffy
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co2battle.bsky.social
Jim Duffy
@co2battle.bsky.social
Retired engineer and environmental scientist, low carbon fuels expert, professor, nuclear power instructor, and submarine driver. Believer in honorable service and the power of good government. Avid golfer, armchair quarterback, and animal lover.
It is embarrassing to be an American. If we experience another 9/11 attack nobody will care, nor should they.
February 22, 2025 at 2:36 AM
Agreed. GWP* is a dangerous distraction. The goal of climate action is not to be satisfied with a steady methane concentration in the atmosphere that is well above pre-industrial levels, but rather to stop polluting the atmosphere so that methane concentration can return to pre industrial levels.
February 10, 2025 at 4:43 AM
The Three Magi bearing gifts of gold, frankincense, and myrrh in homage to the chosen one
January 20, 2025 at 9:39 PM
Making matters worse, those same emission reductions will likely generate credit under California's Low Carbon Fuel Standard. So not only will Eneos be offsetting their emissions, but also a California refiner will be offsetting their emissions. Two for one, not a bad deal for Oxy.
January 16, 2025 at 2:06 PM
Under the RFS, dairy gas is considered a cellulosic biofuel, which means it has been determined to achieve at least a 60% GHG reduction as compared to the petroleum baseline. Biogas from landfills, wastewater treatment facility digesters, and agricultural digesters all meet the cellulosic category.
January 8, 2025 at 8:28 PM
It is unfortunate that this article claims as fact that biodiesel reduces GHG emissions as compared to heating oil. It is well documented that the carbon intensity of biodiesel is highly uncertain and may very well be greater than heating oil.
January 6, 2025 at 5:23 PM
And now the US Renewable Fuel Standard and California LCFS are incentivizing major oil companies to import record quantities of "used cooking oil" from China to produce "low-carbon renewable" diesel. Anybody see the risk there...
December 20, 2024 at 5:23 PM
One point that I would add is that the cruelty of factory farms, and particularly poultry farms, is appalling.
December 20, 2024 at 5:02 PM
One possibility: After the initial LCFS adoption, POET successfully sued on CEQA and APA grounds. The Court left the LCFS in place but froze the regulation at 2013 standards until CARB readopted the LCFS and ADF regs in 2015. See discussion on page 1-2:

ww2.arb.ca.gov/sites/defaul...
ww2.arb.ca.gov
December 19, 2024 at 7:11 PM
Drone's eye view of your roof and swimming pool?
December 19, 2024 at 5:47 PM
"We never expected a perfectly shaped curve over time. The 35% is an ideal number," said Dave Clegern, a spokesperson for the California Air Resources Board, which set regulations to enforce Newsom's mandate. 🤣
December 11, 2024 at 8:00 PM
Similarly, the goal of climate action is not to be satisfied with a steady methane concentration in the atmosphere that is well above pre-industrial levels, but rather to stop polluting the atmosphere so that methane concentration can return to pre industrial levels.
December 7, 2024 at 4:54 PM
Sure, the metal concentration will no longer be increasing in the lake, but that is not the goal - the goal is to stop polluting the lake so that metal concentrations and resulting toxicity will return to zero.
December 7, 2024 at 4:54 PM
Thank you for this article. GWP* is akin to a factory releasing toxic metal pollution into a lake and saying they have achieved "toxicity neutrality" when the rate at which they release metals to the lake is equal to the rate at which the previously released metals leave the lake via the river.
December 7, 2024 at 4:53 PM
Dairy emissions in California could be addressed by regulating the dairies and not through the LCFS. A properly designed dairy regulation could result in emission reductions focused on the California dairy industry and provide incentive for alternative manure management instead of just digesters.
December 6, 2024 at 2:48 PM