May 1, 2013 -
The Arkansas-based retail giant aims to become a renewable-energy giant. But can Wal-Mart's business model ever really be considered sustainable?
March 23, 2011 -
An environmental chemist whose work has helped illuminate the ongoing health impacts of BP's Deepwater Horizon oil disaster will be the recipient of a human rights award from Global Exchange, an organization that promotes social, economic and environmental justice around the world