There is hardly a person who does not know the words of the hero Saint-Exupéry from The Little Prince: “I washed my face in the morning, put myself in order, and then immediately put my planet in order.” Not everyone knows what it means to put your planet in order. On April 22, the whole world celebrates Earth Day. The earth appeared about 4600000000 years ago. It is impossible to imagine a number with so many zeros. For clarity, we will artificially reduce it by removing all zeros. Now we can say that the Earth appeared 46 years ago. We know nothing about the first seven years of the Earth's existence. We know only a few fragments from the middle period of the Earth's existence. When the Earth was 42 years old, life began to appear on it. Dinosaurs appeared a year earlier (when the Earth was 45 years old), and mammals appeared eight months earlier. In the middle of last week, the first monkeys appeared, and at the end of it, an ice age began on Earth. The current person appeared only 4 hours ago! He spent the last hour learning how to use it on the ground, and a minute ago the first factory started working. In the last 60 seconds, man has managed to turn the Earth into a real garbage dump.