RE: Ticking up 1.35/1.424 Mar 2021 16:16
extrader- on the BBC link remove the fullstop at the end and it works fine :)
"Blue-sky thinking
The science of direct air capture is straightforward. There are several ways to do it, but the one that Carbon Engineering's system uses fans to draw air containing 0.04% CO2 (today's atmospheric levels) across a filter drenched in potassium hydroxide solution – a caustic chemical commonly known as potash, used in soapmaking and various other applications. The potash absorbs CO2 from the air, after which the liquid is piped to a second chamber and mixed with calcium hydroxide (builder's lime). The lime seizes hold of the dissolved CO2, producing small flakes of limestone. These limestone flakes are sieved off and heated in a third chamber, called a calciner, until they decompose, giving off pure CO2, which is captured and stored. At each stage, the leftover chemical residues are recycled back in the process, forming a closed reaction that repeats endlessly with no waste materials."
I think if potash can help clean the air then all good. The more uses the better from an investor in Kore Potash point of view.