If you see a photo of the earth taken from space, you must feel how beautiful it looks. At the same time you will feel that this planet is alive. In fact it is, and we humans are part of it. So we must take good care of it. If we don't, it will surely get worse. You might think one person would make little difference, but today there are over 6.3 billion people living on the planet. Think of the power we will have if we get together. You can start by recycling waste or walking instead of driving.
