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In recent years the number of environmental problems has increased greatly. One of the most dangerous problems for our planet is global warming which means that most climates all over the world are changing and getting warmer. It happens because we burn too much petrol resources, such as oil and coal, and the Earth heats up. This process can cause melting of the polar ice and the sea level rising in the future. If the climate changes there will be floods, heavy storms or severe droughts in different areas of the world.We should start recycling things made of glass, paper, plastic and aluminium. We should stop smoking and plant as many trees as we can because they can give us more oxygen. We need to drive less and use public transport in order to reduce fuel burning. We are responsible for the situation.