By Guest Columnist LALITH POLEPEDDI, a research scientist at Georgia Tech's Global Change Program
Efforts to curb the spread of COVID-19 have radically transformed travel patterns across the globe. Between April and September 2020, global air travel dropped by 58% compared to the same time period in 2019. In the US, air travel dropped by 79% in that same time period. The steepest reductions occurred in the US in April, when air travel fell by 95%, and globally in May, when air travel fell by 68%.