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silence7@slrpnk.netM to Climate@slrpnk.netEnglish · 3 years ago

For first time 50% of California diesel fuel is replaced by clean fuels | Low Carbon Fuel Standard drives shift away from petroleum

ww2.arb.ca.gov

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For first time 50% of California diesel fuel is replaced by clean fuels | Low Carbon Fuel Standard drives shift away from petroleum

ww2.arb.ca.gov

silence7@slrpnk.netM to Climate@slrpnk.netEnglish · 3 years ago
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For first time 50% of California diesel fuel is replaced by clean fuels | California Air Resources Board
ww2.arb.ca.gov
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SACRAMENTO— California hit an important milestone in its shift away from polluting fuel sources, with clean fuels replacing over 50% of the diesel used in the state in the first quarter of 2023.

Note: a big part of this has been the conversion of soybean oil into diesel fuel. A large fraction of US soybean oil production is now burned, which will limit how much this can scale further

Chart showing how US soybean oil was used each year from 2000-2022.  Shows biofuels rising from near zero to ~40% of total soybean oil use.

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  • br3d@lemmy.world
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    3 years ago

    Greenwashing. Driving your pickup truck to buy a Starbucks still isn’t okay even if you’ve ravaged land to grow food that nobody can eat rather than burning fossil reserves

  • calculuschild@lemm.ee
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    3 years ago

    How much “lower carbon” is the soybean biofuel compared to standard Diesel petroleum?

    • silence7@slrpnk.netOPM
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      3 years ago

      The carbon in the fuel is derived from photosynthesis, so it doesn’t add CO2 to the atmosphere. It’s blended into a mostly-fossil blend, so the impact has been a roughly 12% emissions cut

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

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