Satellite Data Video Shows Methane Escape in Arctic May 24, 2012.
This video provides a vision (AIRS satellite) of Arctic permafrost melting and concentrations of methane in the Arctic atmosphere over the past decade. Under rapid sustained Arctic warming As the months tick by, Arctic Russia and Canada turn red as methane escapes to the atmosphere.
This NOAA image shows post 2007 methane emissions
(flux) increase from Boreal (subarctic) regions.
Methane is highly reactive asa chemical in the
atmosphere, making it very difficult to pin down
changes and sources of emissions and their effect.
This is made worse by inadequate monitoring capacities.
Methane tends to get concentrated over the high latitides.
Most emissions are from the NH and Hydroxyl OH that
removes methane works best in the cold.
Though there is no agreement among experts, we know
that warming weltlands and thawing permafrost will release more methane with more Arctic warming.
There is certainly evidence from several research approaches that subarctic warming wetlands are releasing more methane. Local permafrost research over many years has shown that thawing permafrost is emitting methane.