There are more trees on Earth than stars in the Milky Way galaxy. While the Milky Way contains hundreds of billions of stars, the number of trees is estimated to be in the trillions
Ninjas used a system called Goshiki-mai, meaning Five Colored Rice, in which rice grains were painted red, blue, yellow, black or purple in order to leave coded messages or trails.
Mount Everest is growing every year. The high erosion of the combined rivers supercharged Everest's growth, adding around two millimeters of additional height each year.
As well as a carbon footprint, every item also has a water footprint. Knowing how much water it takes to make products is an effective way of being able to reduce your water footprint. Common items include paper (5.1 L), water bottles 1.3 - 5 L) cotton t
