Природа и трудности экологии 6-7 предложении главное было коротко

Our planet is suffering by ecological problem. The biggest one is air pollution.
It cause many illnesses and problems with health at all. But it also has a bad influance on nature. Many factories produce a lot of toxic gases in air that killed living cells. From day to day the humanity can died out from ecological problem like that one. So we must to save our ecology because it is our future. 
Простите, что так длинно. Отвлекался немножко.
Ну здесь просто уменьшить, если для вас необходимо.

Modern technogenic civilization, in addition to increasing the degree of household comfort, has led to a rapid deterioration of the ecological situation in the world. Over time, ecology, spoiled by civilization, can lead to catastrophic consequences. On the planet, forests are dying out massively. Today the quantity of minerals is rapidly decreasing.