Quote Originally Posted by Tuuvi View Post
Could it be that environmental regulations helped prevent further damage from acid rain? No, that couldn't be it. There's no way pumping industrial chemicals into the atmosphere could have acidified the rain. The environmentalists must have lied. That's the only logical explanation.
Acidic rain is necessary to produce calcium-rich clay by erosion which runs into the ocean via rivers and makes e.g. the important building blocks for shell-fish, housing for snails and least but not last coral. The calcium depended creatures eventually die and make limestone which is in fact trapped CO2 in the ocean. The cliffs of Dover is a great example of this - once an ocean bed. Environmental regulation will never stop acidic rain, if it did - it would destroy important ecological circuits.