The Japan News
When I opened the door to the Yumenoshima Tropical Greenhouse Dome in Koto Ward, Tokyo, I was met by warm air flowing out from inside. The huge glassed-in dome, whose interior resembles a tropical forest, houses about 800 species of tropical plants.
The thermal source for the greenhouse, which is heated with a warm-water pipe circulation system, is heat generated during garbage incineration at a nearby waste disposal center.