phys.org: Remote work can slash your carbon footprint, if done right

Remote workers can have a 54% lower carbon footprint compared with onsite workers, according to a new study by Cornell University and Microsoft, with lifestyle choices and work arrangements playing an essential role in determining the environmental benefits of remote and hybrid work.

The study, published in the Proceedings of the National Academy of Sciences, also finds that hybrid workers who work from home two to four days per week can reduce their carbon footprint by 11% to 29%, but working from home one day per week is more negligible, cutting carbon footprint by only 2%.

"Remote work is not zero carbon, and the benefits of hybrid work are not perfectly linear," said study senior author Fengqi You, professor in energy systems engineering at Cornell. "Everybody knows without commuting you save on transportation energy, but there's always lifestyle effects and many other factors."

The main contributors to carbon footprint for onsite and hybrid workers, according to the study, are travel and office energy use. That's no surprise to researchers quantifying the impact of remote work on the environment, but Cornell and Microsoft used survey data and modeling to incorporate factors sometimes overlooked when calculating carbon footprint, including residential energy use based on time-use allocation, non-commute distance and mode of transportation, communications device usage, number of household members and office configuration, such as seat sharing and building size.