for Invited Talk at the First Annual Energy 2030 Conference, Abu Dhabi, UAE, November 1-2, 2006 1 Opportunities and Perspectives for Plastics in Coming Fossil Fuel and Solar Energy Scenarios Reinhold W. Lang 1, 2 1 Institute of Materials Science and Testing of Plastics, University of Leoben 2 Polymer Competence Center Leoben GmbH Franz-Josef-Straße 18, A-8700 Leoben, Austria lang@unileoben.ac.at