Acid test shows real threat to coral reefs

While our Minister proclaims no need to panic, waiting for breakthrough from R&D:

The scientists measured the acidity of seawater that flowed over a reef off Australia’s One Tree Island in the southern Great Barrier Reef. At low tide, the reef encloses a lagoon isolated from the rest of the ocean. They then added sodium hydroxide to bring the pH closer to what it would have been two centuries ago, based on estimates of what carbon dioxide levels must have been at the time…The altered water was then they pumped onto the reef, and measurements were taken of the rate at which the corals took up calcium from the water to make their skeletons…“Our work provides the first strong evidence from experiments on a natural ecosystem that ocean acidification is already slowing coral reef growth,” says the study’s leader, Rebecca Albright, a marine biologist in the Department of Global Ecology at the Carnegie Institution for Science, California.

>more> ClimateNewsNetwork

About groundswellbasscoast

This is on behalf of local climate change group. Material is selected by Bernie McComb and does not necessarily represent opinion of whole group.
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