Wednesday, January 28, 2009

Biochar and reforestation may offer better global cooling potential than ocean fertilization

Mongabay: The first comprehensive assessment of the climate cooling potential of different geoengineering schemes has been conducted by researchers at the University of East Anglia (UEA). The results are published in the journal Atmospheric Chemistry and Physics Discussions Among the findings, according to a statement from UEA:

Enhancing carbon sinks will take nearly 100 years to bring atmospheric carbon dioxide levels back to pre-industrial levels and will require sharp cuts in emissions.

Stratospheric aerosol injections and sunshades in space — a concept supported by Paul J. Crutzen, winner of the 1995 Nobel Prize in Chemistry for his work on the hole in the ozone layer — have "by far the greatest potential to cool the climate by 2050" but carry the greatest risk.

Adding phosphorous to the ocean via existing activities may have greater long-term carbon sequestration potential than iron or nitrogen fertilization schemes.

Sequestering carbon by planting forests and as 'bio-char' — charcoal added back to the soil — have greater short-term cooling potential than ocean fertilization. Bio-char also offers to potential to boost soil productivity for agriculture.

Increasing the reflectivity of urban areas could reduce urban heat islands but will have minimal global effect. The same goes for schemes involving ocean pipes and stimulating biologically-driven increases in cloud reflectivity.

The beneficial effects of some geo-engineering schemes have been over-estimated and mis-calculated in previous calculations….

Dr Alexander Thorkel (Albert Dekker) from Dr. Cyclops (1940)


Anonymous said...

Hola, Interesante, no va a continuar con este artŠ½culo?

Anonymous said...

Lovely sharp post. Never thought that it was this easy. Extolment to you!.

Erich J. Knight said...

Thanks Anonyno,
I have never been granted Extolments before.

Biomass should never be just burnt, instead it should be fractionated to it's high value uses.
Biochar systems achieve this, to fill in gaps and hopefully expand your story & research , particularly concerning Christoph Steiner's new work with Biochar and NH3 conservation in composting systems.

Sustainable bio char to mitigate global climate change

Not talked about in this otherwise comprehensive study are the climate and whole ecological implications of new , higher value, applications of chars.

the in situ remediation of a vast variety of toxic agents in soils and sediments.
Biochar Sorption of Contaminants;

Dr. Lima's work; Specialized Characterization Methods for Biochar
And at USDA;
The Ultimate Trash To Treasure: *ARS Research Turns Poultry Waste into Toxin-grabbing Char

The uses as a feed ration for livestock to reduce GHG emissions and increase disease resistance.

Recent work by C. Steiner, at U of GA, showing a 52% reduction of NH3 loss when char is used as a composting accelerator. This will have profound value added consequences for the commercial composting industry by reduction of their GHG emissions and the sale of compost as a nitrogen fertilizer.

Since we have filled the air , filling the seas to full, Soil is the Only Beneficial place left.
Carbon to the Soil, the only ubiquitous and economic place to put it.

Thanks for your efforts.

Erich J. Knight
Chairman; Markets and Business Committee
2010 US BiocharConference, at Iowa State University

EcoTechnologies Group Technical Adviser
Shenandoah Gardens (Owner)
1047 Dave Barry Rd.
McGaheysville, VA. 22840
540 289 9750
Co-Administrator, Biochar Data base & Discussion list TP-REPP