Description

Using data from http://css.umich.edu/factsheets/carbon-footprint-factsheet, CO2 generated averages 0.39 lbs / mile per person.

5016 mile flight from Paris to Seattle, 10032 miles round trip = 3912.5 lbs CO2 per person.

At $0.015 per pound CO2, round trip cost = $58.70 to offset