Once upon a time, people didn't have to consider protecting the environment. The earth is sparsely populated, and natural resources seem infinite.

Things are different today. The world has become too crowded. We are exhausting our natural resources and polluting our environment with dangerous chemicals. If we continue to do this, human beings on earth will not survive.

We realize that if we catch too many fish from the sea, there will soon be none left. However, with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear. However, we continue to use powerful machines to cut down more and more trees. We see that if rivers are polluted by waste, we will die. However, waste products are

Still into the river.

We know that if the population continues to grow at the current rate, there will not be enough food in a few years. What can we do to solve these problems?

If we eat more vegetables and less meat, there will be more food. The land where crops are planted supports five times as many people as the land where animals are raised.

If we learn to recycle, our natural resources will last longer.

If people used modern birth control methods, the world population would not grow so fast.

Finally, if we educate people to think about these problems, we will have a better and cleaner planet in the future.

environmental protection

In the past, people didn't have to worry about protecting the environment.

Because the earth was sparsely populated at that time, natural resources seemed inexhaustible.

Now everything has changed. The world has become extremely crowded. We are exhausting our natural resources, and the use of toxic chemicals is polluting the environment. If we go on like this, life on earth will cease to exist.

We all know that if too many fish are caught from the sea, there will be no more fish in the sea. However, modern fishing technology makes the catch more and more. We all know that if too many trees are cut down, forests will disappear. But, I

Scientists still use powerful machinery to cut down more and more trees. We all know that if rivers are polluted by waste, we will only die. But waste still keeps entering the river.

We know that if the population continues to grow at the current rate, there will be a food shortage in a few years. How can we solve these problems?

If we eat more vegetables and less meat, we will have more food. Because the same size of land, if you grow crops, you have to feed five times as many people as livestock.

If we learn to reuse, natural resources will last longer.

If people used modern birth control methods, the world population would not grow so fast.

Finally, if we can educate people to realize these problems, we will have a better and cleaner planet in the future.