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Also from this article, between 1.5 and 2 degrees: > widespread abrupt permafrost thaw Which is “fun” because that releases a boatload more carbon into the at
by ryukafalz 4y ago
Also from this article, between 1.5 and 2 degrees:
> widespread abrupt permafrost thaw
Which is “fun” because that releases a boatload more carbon into the atmosphere.
- andy_ppp 4y agoAnd methane.
- inetknght 4y agoYes, methane contains carbon.
- hh3k0 4y agoMethane is, over the span of 20 years, a 84--86 times more potent Greenhouse gas, though.
- ryukafalz 4y agoAs the sibling comment mentions methane contains carbon, but yes it’s worth pointing out because the short-term GHG potency of methane is extremely high. There’s potential for some terrible feedback loops here.
- foobarian 4y agohttps://en.wikipedia.org/wiki/Clathrate_gun_hypothesis https://en.wikipedia.org/wiki/Clathrate_gun_hypothesis
- hh3k0 4y agoEverybody gangsta till the Clathrate gun pops off.
- saalweachter 4y agoIf you have a Clathrate gun in one chapter, it must go off in the next.
- BLKNSLVR 4y ago(not sure the scale of controversial this is) and anthrax and various other as-yet-unknown bacteria.
- AnonHP 4y agoAnd perhaps small pox and other viruses from dead and frozen bodies in permafrost?
- sebazzz 4y agoAre these side effects calculated in the models, or are the models too optimistic?
- jandrese 4y agoHistorically climate change models have been too optimistic. The other thing we have to consider is that if the model's range is between "everybody suffers" and "everybody dies" do you want to gamble with that?
- sebazzz 4y agoProbably not. However, it seems that regardless of what they predict, nothing will happen. Humanity is like a toddler, only learns when you feel the consequences, rather than learning by being told about it. Also like a stubborn toddler like first needing to experience an almost trauma to change behavior, and apparently we haven't had that trauma yet.
- ryukafalz 4y agoThis article seems to indicate that the current models don’t account for some of it: https://climate.nasa.gov/news/2785/unexpected-future-boost-of-methane-possible-from-arctic-permafrost/ https://climate.nasa.gov/news/2785/unexpected-future-boost-o... > The impact on the climate may mean an influx of permafrost-derived methane into the atmosphere in the mid-21st century, which is not currently accounted for in climate projections. (Note this is an unexpected type of abrupt thaw; the models probably do include the impact of more gradual permafrost thawing. Cold comfort though, and polar ice is melting at a faster rate than predicted overall.)