[aoeu345]

Hi, I don't see anything in your list about carbon sequestration. Can you point me to any companies investing in advanced robotics to assist in silicate mineral crushing & spreading, as it's the only sensible, achievable sequestration technique? Thanks.

For readers interested in carbon sequestration, please check out the following paper: "Enhanced chemical weathering as a geoengineering strategy to reduce atmospheric carbon dioxid e, supply nutrients, and mitigate ocean acidification"[1]

[1]: http://www.greensand.nl/content/user/1/files/rog20004.pdf

[slitaz]

Carbon sequestration does not produce immediate benefits, like being a cheap way in making bricks (extreme example).

It is like the insulin injections to a person that got already type-2 diabetes.

[aoeu345]

It does not produce immediate benefits, but perhaps a problem that is 100 years in the making might take a global solution on a 100 year time scale.

[sgt101]

We have the disease; we need to explore all care options...

[PeterisP]

All the other technologies satisfy some currently existing demand, but there's no demand for carbon sequestration - as in, nobody is willing to pay for large scale carbon sequestration.

It's currently fit for theoretical research only. There's no political will in sight to do that in the coming decade(s?), so it's too early to start practical R&D.