of today's yearly emissions from human activities, making the reduction of greenhouse gases in the atmosphere a much more difficult task. (skepticalscience.com)
Previously, scientists had thought that the algae technique, known as iron fertilization, could contribute to the drawdown of up to 1 gigaton of carbon a year — more than 10 % of current yearly emissions. (sciencemag.org)
While current technology can track yearly emissions directly from «cooperative countries» with a 20 percent margin of error, only a satellite can keep tabs on nations that resist such monitoring, JASON scientists warned (ClimateWire, Jan. 28, 2011). (scientificamerican.com)