Pia Heinemann reports in Die Welt today, Ocean Acidification Does Not Lead To Species Die-Off, on a new study appearing in the latest edition of Science. The study contradicts the assumption that ocean acidification leads to species die-off, surprising scientists.Abstract in Science here
Manmade emissions of CO2 are thought to be partly absorbed by the oceans, which in turn would acidify and pose a huge threat to calcareous organisms like corals and plankton. This is the horror story that has been widely circulating in the media for the last couple of years, and with ever-growing alarmism, at a time the dangers of global warming are turning out to be wildly exaggerated.
Italian and Swiss scientists have found answers by looking at 120 million year old sediment deposits. The team directed by Elisabetti Erba of the University of Milan describes new findings in the latest issue of Science.
It is not unusual for CO2 concentrations in the atmosphere to surge after large volcanic eruptions. This has happened often in the past.
They examined microscopic fossils and nannoplankton from a time period just after large volcanic eruptions 120 million years ago, when the air’s CO2 content rose to about twice today’s level. Their studies contradicted their expectations. Die Welt writes:
Contrary to what was expected, no large-scale die-offs occurred among the organisms when acidification increased. The species simply adapted: They formed smaller shells and remained small.
They endured the changes far better than first thought.
Heinemann writes that the study also delivered yet another surprise:
Apparently, the oceans acidify with a delay. After the volcanoes erupted and the surface water pH value began to sink, it took 25,000 to 30,000 years longer for the CO2 effect to reach the sea bottom.
These new findings deal a massive blow to those hoping to exploit ocean acidification as the next disaster scenario to replace the discredited catastrophic AGW story. Expect the MSM to bury or spin the story.
Update/Note: Keep in mind that the plankton and coral studied were from 120 million years ago, meaning the species has since survived climate extremes and changes that were off the charts when compared to today’s mild natural changes. They’ve handled much colder and much warmer conditions with widely varying ocean chemistry.
Update 2: The Alfred Wegener Institute in Germany [Read here] is planning years of research on acidification, costing millions of euros, to study a bogus non-problem. They’ve teamed up with neutral Greenpeace, and so you can be sure they’ll come up with “catastrophic” findings and demand more money for reasearch. Whatever it takes to bilk the taxpayer out of money.