Hi all,
Yes, we have the key for MR (= Methane Removal): The processing how to
remove any methane from the atmosphere has been in use by Nature since
the loess-dusty ice ages: Sunshine photolyzes the small iron(III)
chloride content of the loess particles by generating iron(II) and
atomic chlorine (°Cl). °Cl is about 16 times more reactive as methane
depleting agent than the ordinary methane oxidant hydroxyl radical
(°OH). This methane depleting reaction is one of the main reasons of the
effect, that the coldest surface temperatures during the Ice Age
coincided with the lowest methane levels. Further the soluble iron
content of precipitating loess dust acts as an inhibitor of the
microbial induced methane generation generation. Additional the loess
dust induced phytoplankton blooms by activation of the CO2 assimilation.
Additional loess dust acted as cloud condensation nuclei and generated
an cloud albedo increase. This and several more effects induced by
direct and indirect loess dust actions cooled the surface. This again
acted against methane generation.
Instead of loess dust we propose the very simple to generate and much
more active FeCl3 aerosol (ISA). ISA could be emitted simply into the
lower tropospheric heights of 1000 m above ground. ISA works much better
than natural loess dust. The °Cl generation capacity of ISA has been
proven. Even a yearly generation and emission of 100,000 t iron globaly
might stop and even reverse climate warming. This corresponds to a
doubling of the recent global precipitation of dissolved iron and
corresponds to an additional iron precipitation level in the milligram
range per square meter and year! Find more details at
http://www.earth-syst-dynam.net/8/1/2017/
<http://www.earth-syst-dynam.net/8/1/2017/>
Franz
------ Originalnachricht ------
Von: "Greg Rau" <[email protected]>
An: "Geoengineering" <[email protected]>
Gesendet: 22.03.2017 18:02:23
Betreff: [geo] Siberian Methane Update
http://www.sciencealert.com/7-000-huge-gas-bubbles-have-formed-under-siberia-and-could-explode-at-any-moment?utm_source=ScienceAlert+-+Daily+Email+Updates&utm_campaign=fe923a93e0-MAILCHIMP_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_fe5632fb09-fe923a93e0-365584569
"Back in 2016, local environmental researchers Alexander Sokolov and
Dorothee Ehrich decided to pull back the dirt and grass that had been
blanketing these bulging bumps of earth, and found that the air
escaping from them contained up to 1,000 times more methane than the
surrounding air, and 25 times more carbon dioxide.
And things can get even weirder at the bottom of the biggest sinkholes
- a 2014 investigation into a 30-metre-wide (98-foot) crater on the
Yamal Peninsula found that air near the bottom of the crater contained
unusually high concentrations of methane - up to 9.6 percent."
"Researchers have hypothesised that these methane bubbles are linked to
a recent heatwave that had prompted the Siberian tundra's permafrost to
thaw."
"A 2013 study found that a global temperature rise of 1.5°C would be
enough to kickstart an unprecedented period of melting, but thanks to
abnormally hot summers linked to climate change, local researchers
suspect that this is already starting to occur, with daily temperatures
in July 2016 hitting a worrying 35°C (95°F)."
GR - If you have an idea for methane CDR you might be in demand
shortly.
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