A bird flies by the Vedanta office building in Mumbai August 16, 2010. REUTERS/Danish Siddiqui

This month, Vedanta Resources and subsidiary Sterlite Industries (India) Ltd. made headlines for posing a public health risk to the surrounding community in southern India with pollution from a large copper smelter. They share the top spot in this issue of The Green Gauge, a breakdown of companies recently in the news for winning or losing credibility based on environment-related activity.