CO2 emissions a good thing?

Among other emissions, Carbon dioxide is a headache for many cement producers.  Finding the right balance between environmental-responsibility and financial-stability is difficult.  For industrial plants shifting towards carbon capture and sequestration (CCS), economic performance suffers due to the high cost of installing and running the necessary equipment.  However, a way of offsetting those costs is now in development at Sandia [...]

Magic pixie dust

It was about a year ago that I first heard about Calera, a mysterious company that claims to be able to make cement by reacting CO2 and seawater with some “magic pixie dust” to produce a cement like material. Their claims have been widely disputed and their secretive nature has not done much to help the [...]