Earthtalk Q&A: E-Scooters

Dear EarthTalk: What’s the environmental impact of these dockless e-scooters I see all over town now? -- Jim M. Salisbury, CT
A recent lifecycle analysis found that bicycling, walking and buses are all “greener” modes of transport than dockless e-scooters...but are they as fun? Photo Credit: Brett Sayles, Pexels.

Roddy Scheer & Doug
EarthTalk

By now, you’ve certainly seen dockless e-scooters in your town or somewhere nearby. Some 85,000 of these electric-powered, phone-unlockable mini-vehicles crowd the streets and sidewalks of 100 different metro areas across the U.S. In 2018 they surpassed dockless e-bikes as the most common app-rentable transport option nationwide, with riders taking them on some 38.5 million trips.

These e-scooters are often marketed as “green” or “carbon-neutral” because they run off electric batteries instead of fossil fuels, but consumers shouldn’t think they’re getting a completely guilt-free ride. A recent lifecycle analysis from North Carolina State University assessing the “cradle-to-grave” environmental impact of e-scooters found that bicycling, walking and buses are all “greener” ways to get around.

A rider hopping on an e-scooter doesn’t necessarily think about the carbon emissions and other impacts involved with manufacturing, transporting and maintaining these otherwise low-impact electric vehicles. “If you only think about the segment of the life cycle you can see, which would be standing on the e-scooter where there’s no tailpipe, it’s easy to make that assumption,” says Jeremiah Johnson, an NC State professor and study co-author. “But if you take a step back, you can see all the other things that are a bit hidden in the process.”

While relatively light and small, e-scooters must carry a battery in addition to their basic frame and electronic systems. Producing these batteries takes a heavy toll on the environment, although no worse than similar types of batteries used in e-bikes and even electric cars. Besides the batteries, the aluminum used to create the e-scooters’ frames and the rubber for their tires add to their environmental footprint.

The NC State researchers found that about half of an e-scooter’s carbon footprint is created during production, while most of the rest (43 percent) comes from collecting and recharging them every night. In general, e-scooters are charged by freelance workers known as “juicers.” At the end of each day, they take e-scooters off the street and typically charge them up at home via their own power outlets (likely not from renewable sources). Furthermore, the majority of juicers pick up e-scooters in gas-powered cars or trucks. The upshot is that the common charging process is a long way from being carbon neutral.

That said, e-scooters are currently about twice as efficient as the average car in per passenger miles per gallon (in this case CO2 units emitted per passenger carried a distance of one mile). However, a car carrying more than one passenger can reach the same or even better levels of efficiency as an e-scooter. Buses, when fully loaded, easily beat e-scooters in per passenger efficiency, while bicycles easily beat buses.

Of course, e-scooters are sure to become more efficient in the future as both the production and pick-up processes get greener. As a consumer, you can improve the situation by using e-scooters to replace car trips, but bikes or buses are still a better choice as far as the planet is concerned.

CONTACT: “Are E-Scooters Polluters? The Environmental Impacts of Shared Dockless Electric Scooters,” iopscience.iop.org/article/10.1088/1748-9326/ab2da8.

EarthTalk® is produced by Roddy Scheer & Doug Moss for the 501(c)3 nonprofit EarthTalk. See more at https://emagazine.com. To donate, visit https://earthtalk.org. Send questions to: question@earthtalk.org.

Categories
Green living

RELATED BY

  • Earthtalk Q&A: E-Scooters

    Roddy Scheer y Doug EarthTalk A estas alturas, ciertamente has visto e-scooters sin muelle en tu ciudad o en algún lugar cercano. Unos 85,000 de estos mini-vehículos desbloqueados por...
  • EarthTalk Q&A: Idling Cars and Pollution

    Roddy Scheer & Doug Moss EarthTalk Idling is indeed a scourge on the environment, given the noxious emissions coming out of our engines. According to the U.S. Department of...
  • EarthTalk Q&A: Climate Gentrification

    Roddy Scheer & Doug Moss EarthTalk Climate gentrification is a relatively new term describing what happens when neighborhoods traditionally overlooked by wealthy people become more attractive—and expensive—given their siting...
  • EarthTalk Q&A: Gentrificación Climática

    Roddy Scheer y Doug Moss EarthTalk La gentrificación climática es un término relativamente nuevo que describe lo que sucede cuando los barrios tradicionalmente pasados ​​por alto por las personas...

0