Amazon.com Inc. is playing catch-up as tech giants compete to shed more light on the cloud’s carbon footprint. The big three global cloud-computing providers—Amazon Web Services, Alphabet Inc.’s Google and Microsoft Corp.’s Azure—are starting to vie for clients that want to measure and reduce their emissions, according to David Mytton, a sustainable-computing researcher at Imperial College London. Until recently, there has been “very limited transparency” on cloud providers’ carbon footprints, he said, adding that Amazon is “quite far behind.” On Tuesday, the company introduced a carbon-tracking tool for AWS users that estimates a customer’s emissions based on where they are and the share of green electricity powering the data centers they are using. It also estimates emissions of their data-center use from before the tool was introduced, and the carbon savings they have made since switching to the cloud. Full Story: https://www.wsj.com/articles/amazon-web-services-to-share-emissions-data-as-tech-giants-race-to-green-the-cloud-11646123400?mod=hp_minor_pos16