ARE CORALS GOING SOFT?

To listen to all the stories about how coals are going to be destroyed by CO2 causing oceans to have a very slightly lower pH, you would expect coral to be one of the most sensitive organisms on the planet; but the truth is a bit different as can be seen from this article on the brilliant Watts Up With That blog. You will see that they have survived for 500 million years through drastic climate change and even survived a nuclear blast. In short they are tough critters.