The natural environment suffers greatly from the damaging effects of acid rain. Many kinds of fish cannot survive in acidic water. Acid rain has destroyed fish populations in entire lake. Acid deposits also build up in forests, depleting soil nutrient and preventing tree growth. In Norway, for example,some trees have yellowing needles and branches bare of leaves. The effect is just as damaging when the acid conditions stay in the air rather than fall as rain. When an acid mist from factories in Germany and Poland settled on the coast of Greast Britain in 1989,the mist scorched leaves on thousands of trees overnight.