Major ride-hailing companies Uber and Lyft have pledged all-electric fleets by 2030 in a bid to reduce their carbon footprint. To understand the further implications of this transition, researchers from Carnegie Mellon University (CMU) and the University of Michigan performed  comparing the life cycle of a fleet of battery-powered electric vehicles with a gas-powered fleet, using real-world ride-sharing data and a new. An agent-based model built in Julia to simulate ride-hailing services with high geospatial and temporal resolution. An article about their work is published in the journal ACS Environmental Science & Technology .