Amount of CO2, per day, US airlines will pump into the atmosphere with unneeded, extra flights out of the country’s largest and most congested airports.
These flight plans are the consequence of a rule that requires airlines have a certain number of flights (80% of those allotted) at major airports, lest they lose their spots to rival airlines.
This rule was dropped during the height of the pandemic, but is set to come back soon, and it’s estimated that these bonus-flights (with few, if any passengers aboard) will add about 20,000 tons of CO2 (which is about what would be produced by 30,000 cars running for a year) each day.
—Quartz