Capturing Carbon from the sea-a new idea to contain global warming

One thing we know for certain: the amount of carbon dioxide in the atmosphere isn’t going down any time soon. Last time we looked, it was about 420ppm, which is 50% higher than it was before the industrial revolution. [1] People are not cutting back fast enough. Natural “sinks” like oceans and forests are being destroyed. And despite all the valiant efforts to replace these natural systems with technologies that capture CO₂ from the burning atmosphere, they are not happening fast enough. We are going to crash through the 1.5^O safe limit. Is there any hope of a short cut which might give us a lifeline?

According to Professor Tom Bell of Exeter University there is indeed. Seawater holds 150 times as much carbon dioxide as air does. And so he and his teams have devised a Cunning Plan to start pulling all the extra deadly gas form the water, and putting it to safe storage. We’ve two versions of the story today. One from Jonah Fisher of the BBC[2] if you’ve only got time for a quick espresso. For the double latte and piece of cake crowd, there’s a really clear set of pages from Exeter University itself.[3] We found the graphics to be rather good on this one.. so give it a go.

All of which brings a wry smile to those of us with long memories. Notice, good reader, how the project is being funded by the UK Government. Back in the 1970’s it used to run hundreds of initiatives like this. Many of which later spun off into successful products which in turn founded the fortunes of many a successful export company. (An elderly member of our Editorial Board can bear personal testimony of this from the world of Forensic Science) Then along came the free marketeers, bleating their mantra “Private sector good; public sector bad” like so many sheep from Animal Farm. You can see the results of that “thinking” in the UK Trade Gap, which has been widening steadily ever since. Professor Bell thinks his project can be scaled to capture 14 billion tonnes of carbon dioxide a year. It could be a major industrial and export success for Britain. Surely this one should be left to the pragmatists?

[1]https://www.ibtimes.com/atmospheric-co2-more-50-percent-higher-pre-industrial-era-3529972#:~:text=Concentrations%20of%20carbon%20dioxide%20in%20the%20atmosphere%20in,

[2]https://www.bbc.co.uk/news/articles/cr788kljlklo

[3]https://sites.exeter.ac.uk/seacure/

#global warming #carbon capture #atmosphere #oceans