TecEco's technologies are part of an ambitious yet uniquely profitable and politically acceptable solution to the problems of global warming, water and waste we call Gaia Engineering which is a tececology that can save civilisation as we know it on our planet by changing materials flows and thus underlying damaging moleconomic flows resulting in carbon dioxide and other wastes becoming resources. Gaia Engineering involves technical change rather than politically unacceptable carbon constraint and starts with a process to sequester carbon dioxide using the magnesium and to some extent calcium contained in bitterns, seawater or brine. To date there are many candidate methods that all require further research and development including a process similar to the Solvay process for making carbonate, the Greensols process which involves chemical precipitation, a pyrohydrolysis process that can be run in association with salt manufacture, an ultra high speed centrifuge process and biomimetic processes. The solution to our problems with carbon dioxide and other wastes is to invent technical paradigms that convert them to resources. Resource use is driven by markets and by creating a market for man made carbonate TecEco will provide essential economic drivers.