From The Times
December 1, 2009
Carbon must be sucked from air, says IPCC chief Rajendra Pachauri
"Dr Pachauri raised the prospect of so-called geo-engineering, whereby carbon dioxide is actively stripped from the atmosphere. A range of techniques have been proposed including seeding artificial clouds over oceans to reflect sunlight back into space, sowing the oceans with iron ore to boost plankton growth and using carbon capture and storage technology to fix emissions from power stations."
Nualgi is a superior form of providing iron and other micro nutrients to Diatom Algae.