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A comment on Mazda has tested a synthetic fuel in an unmodified MX5 on a 1000-mile road trip. Parent comment

Re:Mazda has tested a synthetic fuel in an unmodified MX5 on... by dsfyu404ed on Monday January 02, 2023 @10:11AM (#34218691)
What timeline for CO2 neutrality will satisfy you?

The fuel in TFA game from ag-waste. So presumably it's carbon neutral on a ~1-2yr timeline.

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Re:Mazda has tested a synthetic fuel in an unmodified MX5 on... by elif on Monday January 02, 2023 @11:29AM (#34219780)
CO2 neutrality does not make sense in the context of a timeline. it is a mathematical rate, positive being an increase in the atmospheric reservoir and negative being a decrease in the atmospheric reservoir.

No amount of time producing "nearly neutral" increases to the atmospheric reservoir will produce an improvement in runaway existing CO2 feedback loops.

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