Uber sustainable or green car wash? How sustainable is the carsharing industry?

In the last ten years, taxis went from being the quintessential form of transportation for tourists to a service that serves mainly the wealthy. With companies like Uber and Lyft challenging the way tourists travel, questions arise about the long term effects of commuting software, such as environmental impact, impact on the transportation industry of each city, and the sustainability of the business practices that are contributing to the success of these new companies.