Well here's another take. Pump CO2 into the atmosphere and it mixes with water vapour. The resulting Carbonic acid falls as one type of acid rain. A lot of this acid rain falls on land where its type is not such a big problem and can even be beneficial.
Most of it, however, along with the other acids, falls in the alkaline seas and oceans and there it does create BIG problems. The latest report http://www.igbp.net/publications/summar ... s2013.html shows that 30% of all of the ocean's biodiversity may be lost by the end of this century.
Molluscs will be first. Their shells are calcium carbonate and will weaken or even dissolve in less alkaline seas. They are at the lower end of the food chain. Once they go so do the fish...
Go figure.
What depresses me most is this:
The authors warn that the economic impact of the losses from aquaculture could be huge - the global cost of the decline in molluscs could be $130bn by 2100 if emissions of CO2 continue on their current pathway.
Sod the economy - millions of lives, human and animal - are at stake.
