The essential goal of RETAKE is to provide scientifically sound information regarding whether and in what form marine alkalinity enhancement (AE) can be a feasible process in permanently removing significant amounts of CO2 from the atmosphere, in an environmentally sustainable and socially responsible manner.

In particular, this includes:

  • quantitative assessments of CO2 uptake, storage potential, and durability of various AE methods
  • an assessment of environmental impacts, risks and co-benefits of AE
  • study of regional and global impacts of local AE measures
  • assessment and evaluation of economic and social aspects, risks and co-benefits
  • evaluation of the legal dimension (now taking place in ASMASYS, RETAKE provides information about scenarios)
  • investigation of possible mechanisms to consider CO2 sequestration through AE in climate policy
  • providing information about potential monitoring systems capable of detecting and associating effects of individual AE measures as opposed to natural variations and anthropogenic trends
  • analysis of possible synergies and tradeoffs with the SDGs and the German sustainability strategy
  • information about further required research in AE measures, which must be conducted before a decision on potential deployment