We learned about a present technology called photocatalytic concrete.  It is a substance that decomposes pollutants in the air when it comes in contact with light. 

  Our idea is to design new parts for airplanes that contain photocatalytic material, in order to clean pollution higher in the atmosphere, particularly emissions from the airplanes themselves. 

  It’s called “Flying Photocatalytic Pollution Frog”, because, “It eats pollution like a frog eats insects!” says the youngest member of our team.