John Zimmer, a Lyft co-founder and president, writes on Medium about the company's strategy, including self-driving cars, bikes, and carbon neutrality.
HN links it for Lyft's carbon offset policy and for his 2016 prediction that most rides would be self-driving by 2021, which commenters call funny in hindsight.
Lyft purchases carbon offsets for all their rides. Don't know if they incentivize electric vehicles but it would make sense for them to do so at least as much as it costs them to offset conventional emissions.
https://medium.com/@johnzimmer/all-lyft-rides-are-now-carbon-neutral-55693af04f36
Funny in hindsight from 2016: "Lyft's president says 'majority' of rides will be in self-driving cars by 2021"
https://www.theverge.com/2016/9/18/12944506/lyft-self-driving-car-prediction-2021-john-zimmer
https://medium.com/@johnzimmer/the-third-transportation-revolution-27860f05fa91