COLUMBIA, South Carolina, June 23 -- The University of South Carolina issued the following news: * * * USC chemist leads new NSF center focused on developing sustainable, eco-friendly plastics By Chris Horn By 2050 plastic manufacturing around the world is projected to total 1 billion tons, and more than half of all that plastic is expected to end up in landfills and the ocean. It's an industry that relies on petroleum as a key ingredient and produces products that can't easily be recycled  more PR