Amtrak's trying out cow-based biodiesel on some of its trains. Nice.
Salon article here.
Issues I have with this piece:
They're concerned about biodiesel harming rubber components in the engine. Yes. This is correct. But why not just take the safe route and replace those with synthetics? (This is what is done in older diesel cars and trucks so that they can safely use biodiesel)
Also, biodiesel not ONLY reduces carbon-dioxide emissions, but also reduces Nitrogen Oxide and Sulfur Oxide (NOx and SOx), both of which contribute to poor air quality and health problems, such as asthma.
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