To keep global warming below 1.5°C by 2100 the 6th IPCC Assessment Report considered 230 pathways and all of them required carbon dioxide removal (CDR) technologies. Many of these technologies intend to engineer the oceans by biologically or chemically manipulating the marine carbon cycle. This is referred to as marine CDR (mCDR). Before we can responsibly implement mCDR for climate intervention we must understand its impact on marine ecosystems and its efficiency for carbon sequestration. However, the longer we wait to intervene, the more carbon will need to be removed from the atmosphere. Thus, to avoid substantial atmospheric temperature overshoot and minimize the magnitude of intervention required, the time to evaluate the impact and efficiency of mCDR is now.
Marine CO2 Removal
