for me, it's ocean acidification.

For example, it would do nothing to stop ocean acidification.

Climate change, ocean acidification, dissolved oxygen, carbon cycle, coastal upwelling, fishing dynamics the full spectrum of earth science and ocean science simultaneously in the same volume.

So, Charlie Veron came up with this statement last year The prospect of ocean acidification may well be the most serious of all of the predicted outcomes of anthropogenic CO2 release.

This is the case for , which is reduced by photosynthesis of plants, and which, after dissolving in the oceans, reacts to form carbonic acid and bicarbonate and carbonate ions (see ocean acidification).

Rob Dunbar hunts for data on our climate from 12,000 years ago, finding clues inside ancient seabeds and corals and inside ice sheets. His work is vital in setting baselines for fixing our current climate and in tracking the rise of deadly ocean acidification.

At the conditions of the deeper oceans, (about 400 bar or 40 MPa, 280 K) water (l) mixing is very low (where carbonate formation acidification is the rate limiting step), but the formation of water hydrates, a kind of solid water cage that surrounds the , is favorable.

For example, it would do nothing to stop ocean acidification. More importantly, there is no way for us to decide what temperature Earth should be.