The COVID-19 virus and global response has sparked massive changes in our economy and every day lives. There is a lot conjecture about how this experience may shape long-term responses to climate change, from a crashing oil and gas market to the potential for the public taking scientific projections of calamity more seriously.

I’m mostly pessimistic about how the virus and our response to it will shape long-term climate change efforts. My guess is that life will mostly return to our normal fossil fuel-burning ways once the pandemic eases. And in the short term, the economic recession will undermine clean tech investment, while virus panic will hurt transit ridership and possibly undercut support for urban living.

But there’s one potential bright spot for the climate that may outlive this current era: working from home. Prior to the pandemic, only 4% of U.S. employees worked from home, according to Global Workplace Analytics. But now more than half of the 135-million people in the U.S. workforce is setting up in a home office.

The firm estimates that at this rate, by the end of next year 25% to 30% of the total U.S. workforce will be telecommuting, the carbon equivalent of “taking all of New York’s workforce permanently off the road,” per Kate Lister, president of the firm.

From a greenhouse gas perspective, it means many fewer driving miles from commuting. Otherwise, approximately 86% of Americans drive to work, according the National Household Travel Survey. If just 25% of Americans began teleworking even one day per week after the pandemic, total vehicle miles traveled would fall by 1%, which is actually a significant amount of the more than 3.2 trillion miles driven in the U.S. in 2018. The numbers could go much higher if telecommuting were multiple days per week for more people.

And why might these work from home habits stick, as opposed to other environmental friendly measures taken during the pandemic? Simple: working from home is more convenient and productive for most people. But prior to the pandemic, many managers weren’t comfortable allowing the practice, believing (falsely) that it would hurt bottom lines.

But now that everyone who can work from home is forced into this arrangement without calamity, my guess is that this manager resistance will fade. And any employees who might have guessed they wouldn’t enjoy working from home may also be finding that there are significant upsides, which would lead them to agitate for supervisor permission to continue the practice.

Telecommuting by itself won’t solve transportation emissions, but it could set the stage for further reforms, such as dedicating more public spaces like streets for pedestrians and bicyclists, as European cities are now contemplating. After all, people working at home will want to take walks and get out for exercise, and in cities that means streets will need to be converted.

In addition, telecommuting may solidify the current practice of transitioning work travel and conferences to on-line events and meetings. If people are already comfortable working at home, they may be more likely to continue participating in panels and meetings remotely, too, which will reduce car and plane flights.

Perhaps there will be other long-term climate benefits from COVID-19. But to my mind, working from home seems like the most obvious candidate for a pandemic culture-changer that reduces emissions.