Brentwood News 8.23.19

Page 1

August 23 – September 19, 2019

E-Scooters Not as Green as They Seem? Recent study complicates understanding of e-scooters’ environmental impact. By Kai McNamee After taking Santa Monica and Los Angeles by storm, shared electric scooters were touted by many as a solution to the climate crisis. Bird and Lime, two of the largest producers of dockless e-scooters, both market their services as a way to reduce carbon emissions in urban settings. But a recent study published by researchers at North Carolina State University suggests that these devices aren’t as environmentally friendly as they might seem. The study found the majority of the scooters’ greenhouse gas emissions — the chemicals responsible for global warming — come from the initial manufacture of scooters, and the vehicles people use to collect and distribute them during the charging process. Jeremiah Johnson, a co-author of the study and Associate Professor at NC State, explained that the study analyzes the scooters’

“cradle to grave” impacts through a process called life cycle assessment. “The work that we do uses a tool called life cycle assessment to quantify environmental impacts, particularly to quantify hidden aspects of environmental impacts that might be a little bit less obvious,” Johnson said. Johnson’s team found that the baseline electric scooter produces the equivalent of 202 grams of carbon dioxide per passenger-mile. This measurement accounts for the carbon dioxide emissions associated with the scooters’ manufacture, transport, collection and distribution. According to the Environmental Protection Agency, driving a typical automobile produces over 400 grams of carbon dioxide per mile. While riding a scooter is significantly better for the environment than driving a car, surveys show that scooter use frequently replaces walking — in these cases, scooter use replaces a significantly greener mode of transit. The researchers surveyed 61 riders in Wake County, North Carolina and analyzed survey data published by the Portland Bureau of Transportation to determine the replacement effects of shared scooters. The study reported that 49 percent of survey respondents would have biked or walked had e-scooters not been available, and 11 percent would have taken a public bus.

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According to a recent study, e-scooters may not be as environmentally friendly as they seem.

In January, the City of Santa Monica conducted its own study, surveying approximately 3,000 scooter riders. The Santa Monica survey found 50 percent of scooter rides replaced a car trip, 37 percent of rides replaced walking, and 3.8 percent of rides replaced a bus trip.

Photo: Morgan Genser.

“If you’re a user and one of your motivations for using the scooters is to reduce your environmental impact, the more you can substitute car rides with scooter rides the better,” Johnson said. “If you are displacing car

SCOOTER, see page 14

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Solar Powered Emergency Wifi

Pilot program rolls out for Mandeville Canyon. By S am C atanzaro

In a big win for public safety in Brentwood as fire season approaches, the City of Los Angeles’s Innovation and Performance

Commission voted in favor of a Solar Powered Emergency Wifi network pilot program that will allow the City’s entire emergency response infrastructure -- including Shake LA and Notify LA -- to communicate with residents via wifi during a power outage. The pilot grants $200,000 from the City of LA’s Innovation Fund to the City Emergency Management Department for

solar-powered communication equipment, community outreach, integration with the Shake LA mobile app and other ITA systems, and a year’s worth of quarterly testing and maintenance. “Mike was eager to support the pilot program and has been proud to work with neighbors to better protect our neighborhoods from a natural disaster,” reads Coun-

cilmember Mike Bonin’s July newsletter. “The pilot area will cover five miles of the Mandeville Canyon area, where there is a potential of a loss of communication during a major disaster.” According to Daniel Branscome, Treasurer of the Mandeville Canyon Associ-

EMERGENCY, see page 8

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