Carbon footprint of flying is around 0.2kg CO2/mile, carbon footprint of commuting by car is around 0.4kg CO2/mile.
So a car commuter with a 20 mile commute emits 2 tonnes of CO2 per year; a digital nomad without a car commute would need to fly around 20,000 miles a year to get the same amount of carbon emission -- which is the equivalent of two return flights from London to Bangkok, or 10-11 return flights from London to Lisbon.
So they are roughly on the same order of magnitude as a suburban car commute, but could go substantially higher with weekly return flights...
So a car commuter with a 20 mile commute emits 2 tonnes of CO2 per year; a digital nomad without a car commute would need to fly around 20,000 miles a year to get the same amount of carbon emission -- which is the equivalent of two return flights from London to Bangkok, or 10-11 return flights from London to Lisbon.
So they are roughly on the same order of magnitude as a suburban car commute, but could go substantially higher with weekly return flights...