Argument: Verifying carbon sequestered from algae is impossible
- Debate: Geoengineering, iron fertilization of algae blooms - con argument.
"A scientific critique of oceanic iron fertilization as a climate change mitigation strategy". Greenpeace Research Laboratories. September 2007 - "Verifying the quantity of carbon sequestered from iron fertilization is also likely to be difficult (if not impossible) because of the large spatial and temporal scales involved."