The ridehailing giant has met regulatory barriers in some cities. Can converting its cars to EVs push past them?
EXCLUSIVE: Former leader Tim Farron and transport spokesperson Baroness Randerson highlight fears government is not collecting data on zero emission taxi numbers
Ride-hailing app to charge extra 15p per mile to help drivers pay for electric cars
Taxi app seeks to allay concerns its vehicles are clogging urban streets by promising $10m to campaign for sustainable urban planning
Uber rival Lyft announces plan to offset carbon impact of every journey booked on its platform
Tech giant moves into increasingly competitive bike sharing market after testing Jump Bikes' hiring services in San Francisco
All standard uberX journeys will be in EVs or hybrid vehicles by 2020, as firm announces air quality push to phase out diesel engines
Charging infrastructure is the major barrier to rolling out all-electric taxis in London, according to findings from six-month Uber study