by Andrea Ivankovich and Estefania Tsao
Car emissions
Burning fuel produces a variety of emissions,
including sulfur, lead, unburned hydrocarbons, carbon dioxide, and water.
Through the years, we have improved the emissions of both cars and power plants
by reformulating the fuels to eliminate sulfur and metals, and by improving
combustion and post-combustion scrubbing to eliminate unburned hydrocarbons. In
the end, an ideal engine or power plant will only emit carbon dioxide and
water.
Water is fine, but carbon dioxide is the
greenhouse gas that cannot be avoided. We can compute the well-to-wheel carbon
dioxide emissions for a given
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