Letters: Green hype
Briefly

The expansion of Oakland airport would greatly increase aviation emissions, which already account for 11% of the Bay Area's emissions. Focusing on ground operations is misleading, as they only represent 1% of total emissions.
Despite claims about sustainable aviation fuel, it currently fuels only 0.01% of flights. With limited cropland, the emphasis on low-carbon airports conceals the significant emissions from flights.
Read at www.mercurynews.com
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