Environmental problems have become one of the most urgent problems of modern society. More and more people suffer from air and water pollution. Nature also suffers from land and nuclear pollution. The reasons for such environmental problems are numerous. Among them increasing number of cars in the streets, factory waste, millions of cut down trees, destroyed habitats of animals, contaminated rivers and seas. All these problems mainly arise due to human careless activities and gradually destroy our planet. If we look closely, we’ll notice that not only one city is under danger, but the majority of world population. I think, there are some steps that could help people to improve the things. The first that we are able to do is to change the way of life. In my opinion, we should begin with something very simple. For example, start using public transport instead of our cars, we can use glass and wood instead of plastic, it will be effective if the people organize planting of the trees and renovation of the parks.To my mind, we should also look for the alternative energy sources. These could be wind, water and solar energy. In the whole world, scientists are making efforts and looking for ways to use all the resources properly, so I hope that in future they will have a chance to succeed. That means that we will give up using coal and oil, which can give off very toxic wastes.So we can save the world!!!