Uber and Lyft have become popular methods of transport. Due to the popularity of these services there are claims they have led to a decrease in personal car ownership, but there are also claims these services are being used instead of walking, biking, or transit. In order to explore these claims an environmental impact assessment of these services is being done by The Natural Resources Defense Council and the University of California-Berkeley. This study will be done over the course of a year and will evaluate these services across the nation to determine whether there are environmental benefits or consequences to the growing popularity of these services.

I have attached the article discussing this below:
http://www.theverge.com/2015/11/13/9730458/uber-lyft-environment-impact-cost-NRDC-Berkeley-study

I am curious to hear what are you guys think about the environmental impact of Uber and Lyft. Beneficial? Detrimental?