watch, less TV, switch, the lights off, save, electricity/water, travel, by train, use, public transport, go, on foot (пешком), recycle, your waste (отходы), reuse, paper/bottles/clothes, buy food, without packaging (без упаковки), air/water/land, pollution (загрязнение), global, warming, climate, change, natural, disasters (катастрофы)

Environmental problems

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