The recycling rate of Denmark (52%R+C, 48% WTE, 0% landfilling), is an example that recycling and WTE go hand-in-hand. The new WTE plant in Copenhagen (https://www.copenhill.dk/en/), one of the most beautiful and environmentally-minded cities of the world, serves a dual purpose: Sustainable disposal/use of post-recycling wastes and a first class skiing and surfboarding center. The ash of the Copenhil WTE is processed and used beneficially in civil construction. Engineers send spaceships to Mars. They can also help to conserve land on Earth.