The largest sources of transportation greenhouse gas emissions in 2021 were light-duty trucks, which include sport utility vehicles, pickup trucks, and minivans (37%); medium- and heavy-duty trucks (23%); passenger cars (21%); commercial aircraft (7%); other aircraft (2%); pipelines (4%); ships and boats (3%); and rail (2%).

Yes, your average driver creates a fraction of the emissions of the average flight.

But there are hundreds of millions of drivers in the US. Billions of car trips. And only tens of thousands of flights.

Changing the impact of one driver is small. Systemically changing the impact of tens of millions of drivers adds up.