Amazon Inc.’s cloud computing branch, Amazon Web Services (AWS) is the single largest provider of cloud services, it is growing quickly, and its data centers consume massive amounts of energy. Amazon provides limited reporting on its energy use, lacks transparency compared with other large companies in the tech industry. After years of pressure from Green America and others, Amazon has taken steps committing to renewable energy sources.

Amazon reached 50% renewable energy use in 2018 and the company states it has a “long term commitment to achieve 100% renewable energy usage”. Unfortunately, this goal has no deadline. With more than 3 billion Internet users worldwide, demand for cloud computing is growing rapidly, and Amazon has a critical role to play. Now is the time for AWS to build a greener, cleaner cloud—powered by renewable energy. And we need to keep up the pressure to make sure they do so.