My Dad was just honored at his job for having been there for 35 years. While that’s impressive, what really makes me proud is that he’s also been walking to that job for 32 of those 35 years. Being the scientist that he is, I asked him to run some numbers for fun and here they are:
- 32 yrs x 0.85 efficiency x 260 days/yr x 2.5 mi/day = 17,680 miles!
- If I drove up the hill, the distances would be slightly greater,
say 3.5 mi/day, or around 25,000 driving miles over the 32 year
period. At 25mi/gallon average fuel efficiency say, this would be
about 1000 gallons of gasoline, or about 2 1/2 years of typical
average car gasoline usage per year (at about 10,000 miles per
year per car, on the average). - From an EPA Emisson Fact page, I get that 8.8kg CO2 is emitted
for an average gallon of gasoline. So, for 25000 miles we get
220,000 kg CO2 emission saved. - The circumference of the entire earth is around 25,000 miles, so my walking
to and from work has taken me about 72% the way around the earth!
Nice job Dad!
Posted by Christina on March 7, 2010 at 4:10 am
That is so impressive Dad! 72% of the earth…wow!