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I don't know much about the acidity of the water. Temperatures are rising, but haven't for 19 years straight now. I worry more about a miniature ice age like we had in the 1700's - anyone know what caused that, by the way? Seems more destructive to man to have major cooling than warming. Farmers couldn't grow enough crops. But I believe economic progress in the first world will solve everything - except the sun cooling on us - not sure we can do much about that, except pump CO2 into the atmosphere. Then I will be bpvery happy to be wrong about AGW.