"If you add Fe you stimulate growth and the uptake of CO2 from the atmosphere by algae. In a careful biogeochemical analysis, however, this idea proved to be untenable because the algae would eventual run out of other limiting nutrients such as nitrogen and phosphorus. The Geritol Fix could at most reduce our atmospheric CO2 concentrations by 10%."
Slashdot Mirror
According to what I learned in college: "If oxygen were to reach a value of 30% of atmospheric gas composition, fires would occur whenever a lightning bolt hit humid vegetation."u rrent/lectures/Gaia/#EXAMP
http://www.globalchange.umich.edu/globalchange1/c
So there is some truth to that.
see http://www.globalchange.umich.edu/globalchange1/cu rrent/lectures/kling/carbon_cycle/carbon_cycle_new .html
"If you add Fe you stimulate growth and the uptake of CO2 from the atmosphere by algae. In a careful biogeochemical analysis, however, this idea proved to be untenable because the algae would eventual run out of other limiting nutrients such as nitrogen and phosphorus. The Geritol Fix could at most reduce our atmospheric CO2 concentrations by 10%."