Eric C. Guyer, PhD, has worked for four decades as an engineer, inventor, entrepreneur, and author in the energy field. After attaining advanced engineering degrees from the Massachusetts Institute of Technology, he went on to found Yankee Scientific Inc. For more than 30 years, Yankee Scientific has been a creative engineering and technical resource for industry, government, and trade associations. One of Guyer's recent interests is finding and promoting practical ways for the plastics industry to address growing concerns about plastic waste in the environment.