Uber and Lyft generate 70 percent more pollution than trips they displace: study

According to the Union of Concerned Scientists, ride-hailing trips today result in an estimated 69% more climate pollution on average than the trips they displace. In cities, ride-hailing trips typically displace low-carbon trips, such as public transportation, biking, or walking. Uber and Lyft could reduce these emissions with a more concerted effort to electrify its fleet of vehicles or by incentivizing customers to take pooled rides, the group recommends.
Uber Adding To Air Pollution In Europe - Report

The report suggests the surge in taxi apps like Uber is actually contributing to air pollution and climate change. Data compiled by Euromonitor shows a correlation between the surge in the number of ride-share drivers in major European cities and increasing levels of air pollution.