I see your point Nick, harvesting algae using a floating horizontal fine-mesh seine as an algae pond to sequester atmospheric CO2 followed by charring the algae is a seine idea. Since Michel is closer to the Seine.... and you are closer to Branson. :-)
The millions of acres in the US that are in "set aside acreage" that are brush-hogged so the farmer can collect up to $30.00/acre (or are brush-hogged to keep the place looking good) that oxidize releasing CO2, could be covered with a fiberglass mat or such to generate "slash-and-char bio-char in situ. Fred http://www.innovations-report.de/html/berichte/geowissenschaften/bericht-55516.html "Slash-and-burn, which is commonly used in many parts of the world to prepare fields for crops, releases greenhouse gases into the atmosphere. Slash-and-char, on the other hand, actually reduces greenhouse gases, Lehmann said, by sequestering huge amounts of carbon for thousands of years and substantially reducing methane and nitrous oxide emissions from soils. "The result is that about 50 percent of the biomass carbon is retained," Lehmann said. "By sequestering huge amounts of carbon, this technique constitutes a much longer and significant sink for atmospheric carbon dioxide than most other sequestration options, making it a powerful tool for long-term mitigation of climate change. In fact we have calculated that up to 12 percent of the carbon emissions produced by human activity could be offset annually if slash-and-burn were replaced by slash-and-char." In addition, many biofuel production methods, such as generating bioenergy from agricultural, fish and forestry waste, produce bio-char as a byproduct. "The global importance of a bio-char sequestration as a byproduct of the conversion of biomass to bio-fuels is difficult to predict but is potentially very large," he added. " Nick Palmer wrote: > > > Here's three more websites (particularly the first one) that extol the > apparently huge benefits of bio-char charcoal in > soils. If the char was > created from pyrolysed algae that was fattened on fossil fuel sourced > CO2, we could be on our way to a share of $25 million! > Can anyone do some numbers? > > http://www.css.cornell.edu/faculty/lehmann/terra_preta/TerraPretahome.htm > > http://www.innovations-report.de/html/berichte/geowissenschaften/bericht-55516.html >> http://www.cosis.net/abstracts/EGU05/05947/EGU05-J-05947.pdf >
