In 1963 scientists discovered industrial air pollution was acidifying water that rained down from the sky, killing ecosystems of streams. Fifty years later, there's less acid rain. But rivers aren't neutral, they're alkaline.
In 1963 scientists discovered industrial air pollution was acidifying water that rained down from the sky, killing ecosystems of streams. Fifty years later, there's less acid rain. But rivers aren't neutral, they're alkaline.
The furious student protesters rained sticks and rocks on riot police, vandalized government buildings and attacked a car carrying Prince Charles and his wife, Camilla.
The furious student protesters rained sticks and rocks on riot police, vandalized government buildings and attacked a car carrying Prince Charles and his wife, Camilla.
The furious student protesters rained sticks and rocks on riot police, vandalized government buildings and attacked a car carrying Prince Charles and his wife, Camilla.