Mongabay: Planktos, a California-based firm that planned a controversial iron-fertilization scheme in an attempt to qualify carbon offsets, announced that it failed to find sufficient funding for its efforts and would postpone its project indefinitely. The announcement came as welcome news to environmentalists who feared the plan would be damaging to marine life. Planktos had planned to dump tons of iron dust in waters near the Galapagos islands. Planktos claimed it was a victim of "a …