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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