The US Energy Information Administration $($EIA$)$ estimates that each gallon of gasoline is

responsible for approximately $7\mathrm{.}87$ pounds of $GHG(C{O}_{2}e)$ emissions. Current regulations $($CAFE

Standards$)$ require an average fuel efficiency for new passenger vehicles of approximately $35$ miles

per gallon $($MPG$).$ To motivate continued improvements in fuel efficiency and continued GHG

reductions, the EPA has recently issued updated CAFE Standards, requiring an average fuel efficiency

for new vehicles of $49$ MPG by $2026.$

Assuming the average driver travels $10,000$ miles per year, what will be the expected annual GHG

emission reductions $($Ib GHG$/$yr$)$ from a single driver under the new CAFE standards, compared to

current standards?