> From: heather Howard <http://www.gmail.com/~hhoward40> > Date: Sun, 27 Oct 2019 18:59:45 -0700 > Subject: Re: Southwest Airlines carbon offsets > > Guilty as charged. https://carbonfund.org/product-category/air-travel/ describes how to buy carbon offsets separately. Seems absurdly cheap. According to https://co2.myclimate.org/en/flight_calculators/new , my carbon footprint will be 0.685 t. Accroding to https://www.epa.gov/energy/greenhouse-gas-equivalencies-calculator , I'd need to plant 11.3 trees to offset this trip. (Guess I should be happy that the Trump administrator didn't take down this web site.)