The theme of the international 2017 Clean Tech Competition is “Creating a Greener Future.”  Teams of 1-3 students (ages 15-18), assisted by a parent/teacher/mentor, must identify a problem involving plastics and/or the need for clean energy and then develop an original solution.  Teams should register by March 24 and submit their papers by April 14, and 10 finalist teams will prepare prototypes and presentations for prizes.  The contest is sponsored by the Center for Science Teaching & Learning.