source of energy - renewable , harmful gases - emit , change - climate , with energy need - provide provide , difference - make , electricity demands - supply , temperature - average , water shortage - face , melt - polar ices , emissions - industrial , fertilizers - agricultural , cities - overpopulated , exploration - space , vehicles - private, dioxide - carbon, species - endangered, animal habitats - shrinking of , extinction - animal , rains - acid, dumps - rubbish,

Pollution B2

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