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Showing posts with label sea urchin. Show all posts
Showing posts with label sea urchin. Show all posts

Wednesday, February 6, 2013

CO2 carbon capture process mimics Sea Urchin

Carbon capture and storage (CCS) is a thorny and costly problem which scientists are still coming to terms with for a technological solution to mitigating carbon pollution and climate change. But what if we mimiced nature, as indeed scientists at Newcastle University in the UK have done in understanding how the simple sea urchin, a thorny little marine creature, uses nickel to turn carbon dioxide in the sea to calcium carbonate for making their exo-skeleton.

This is another demonstration of the importance of preserving biodiversity: for the insights it can give us in understanding the world around us and assisting in breakthroughs in biological, chemical and pharmaceutical processes. Unfortunately for the sea urchin warming oceans reduce sea urchin sperm longevity impacting the fertilisation process which may lead to sea urchin population decline in the future.

Capturing carbon and long term sequestration is a costly industrial process that currently uses substantial energy and resources. Carbon sequestration is presently only working in pilot programs. Usually CO2 is captured and pumped underground under pressure in depleted oil and gas fields. But there is also a risk of leakage that would substantially lessen any carbon reduction gains made. Earthquakes causing fractures and leakage are also a concern. While there are many pilot CCS plants in operation round the world, industrial scale CCS plants are still a coal mining company's dream.

Several alternate methods for carbon capture and storage (CCS) are being researched and have been proposed as possible answers. See Scientific breakthrough: Remove CO2 from pollution and atmosphere for alternate fuel (Jan 2012) and Award for ground breaking research in capturing Carbon Dioxide (Aug 2010). For a discussion on Carbon Capture and Storage and seismicity see Carbon capture and storage and the Melbourne Earthquake (June 2012)

So a method of extracting waste carbon from coal fired power stations and chemical plants and converting it to a stable mineral form like Calcium or Magnesium Carbonate seems like a no brainer. Especially if it can be done cheaply and efficiently at commercial industrial scale.