https://www.washingtonpost.com/news/theworldpost/wp/2017/11/02/plane-pollution/
determinate carbon cost - https://co2.myclimate.org/en/flight_calculators/new
origin - http://www.pipiscrew.com/?p=11020 for-the-love-of-earth-stop-traveling
https://www.washingtonpost.com/news/theworldpost/wp/2017/11/02/plane-pollution/
determinate carbon cost - https://co2.myclimate.org/en/flight_calculators/new
origin - http://www.pipiscrew.com/?p=11020 for-the-love-of-earth-stop-traveling