Nanowood is heat-insulating material made from wood, that is considered a slightly better insulator than Styrofoam.
Unlike Styrofoam, the material is more environmentally friendly and biodegradable.
It is considered light, strong and created entirely from stripped-down wood fibers.
[1] The material was invented by engineer, Liangbing Hu and his team at University of Maryland, College Park.
[2] Nanowood could potentially save "billions in energy costs" according to Tian Li, a team member.