This video spotlights Pennsylvania, where a regional transportation authority is using hybrid buses to reduce emission levels (Transportation, Distribution, and Logistics Cluster), a legal firm is practicing environmental law (Law, Public Safety, Corrections, and Security Cluster), and a company is making storage batteries for solar and wind farms using clean manufacturing practices (Manufacturing Cluster). The program also travels to Colorado, where the National Renewable Energy Laboratory is pursuing research into the development of alternative energy (Science, Technology, Engineering, and Mathematics Cluster). Correlates to National and State Educational Standards including the NCLB Act. A Cambridge Educational Production. A part of the series Green Careers. (27 minutes)