Along with educational function, one of essential tasks of schools is to make students aware of social and ecological problems of humanity. In the long list of such problems, environmental issues take top positions. From their first days at school children should be told about possible dangerous effects of today environmental problems. It is even more important to provoke discussion among students on environmental issues. It should be clear to any student, despite age, that ecological problems touch each person on the world and we all have to think on their elimination. With Internet development, today many students can use numerous web resources and even make some projects as school assignments. Sure, teachers should motivate their students to do that.