The image on the right, created with IPCC data, shows that methane levels have risen even stronger than levels of two other greenhouse gases, i.e. carbon doxide (CO2) and nitrous oxide (N2O).
Methane levels have risen strongly over the past few years, especially over the Arctic.
Previous posts at this blog have illustrated that, from early October 2013, high methane readings have shown up persistently over the depths of the Arctic Ocean.
The persistence of these readings indicates that this methane wasn't blown there from elsewhere. Furthermore, the presence of methane appears to line up closely with the fault line that crosses the Arctic Ocean and extends into Siberia and further into the Sea of Okhotsk.
The latest data show a continuation of this worrying methane presence over the Arctic Ocean.
On October 18, 2013, readings of up to 2426 ppb were recorded. As the above image shows, high peak readings have occurred over the past few months. Currently, however, high readings can be more clearly attributed to methane venting from the depths of the Arctic Ocean. On the image below, methane shows up very prominently over the Arctic Ocean.
For more background, see posts below.
Related
- The Unfolding Methane Catastrophe
http://arctic-news.blogspot.com/2013/10/unfolding-methane-catastrophe.html
- Methane hydrates
http://methane-hydrates.blogspot.com/2013/04/methane-hydrates.html
- Myths about methane hydrates
http://methane-hydrates.blogspot.com/p/myths.html
Post by Sam Carana.
The lower levels of methane mean rise rate seen around 2000 to 2007 approx were seized upon to deny methane was the threat it is to force Earth Greenhouse runaway but anomaly increase since then has accelerated on whole- this is quite scary to say the least. I'm thinking clathrate behaves like a heat sensitive glue and the change of Earth from human driven temp rise caused the flux of methane stability zone of water ice hydrate form to become super sensitive to allow uptake of guest into nearby free cells of foam form. Methane could then migrate inward to fill matrix causing a pause in rate of increase overall expressed in lower atmosphere.
ReplyDeleteHeat pulse from above moved stability zone downward to where free gas Methane was and it assimilated into the Methane Hydrate water ice matrix for a time. This may now be reversing.
Real research needs to be done on methane Clathrate in the wild.
I think the whole process is very interesting and quite fascinating if it wasn't so darn scary. -and fast..