African can understand the changing of the environment by looking stars or planets. But people in modern city can’t do that. We only can use the computers to figure out. If someday energy runs out, our lives will be a mess. So we should learn some traditional ways instead of technology. After all, who knows when the sources will run out. But, on thing is for sure, natural cycle still has it’s rule
21 century is full of crisis. We have a food crisis, a environment crisis and an especially energy crisis. If one day there is no gas, oil or any other energy we use right now, What will the world be like? If one day there is no oil on earth. Our lives probably will be a disaster. Our cars can’t move, the electricity will be gone and everything will be dark at night. Without electricity, we can’t save our food in the refrigerator then people will have no food to eat. And without electricity, the reservoir can’t give fresh water to each family. So people will get thirsty. Maybe some of them will die because of living without water. However, food and water are necessary for humans to keep alive. Without these, people probably will die. So, if our lives become that awful situation, people won’t go to school or work. They just want to survive. Then the society system will be destroyed and the government will be gone. The society without government will be a mess. People start to find a river to get enough water. Growing some plants to eat. The life quantity will turn back to 16 or 17 century because of the world has no energy anymore. That’s really a disaster. So, before we find a way to solve the crisis. People should use less energy to protect our plant. Don’t waste any energy in our lives.