Tropical forests are also now a carbon emitter:
https://www.carbonbrief.org/tropical-forests-no-longer-carbo...
Climate change has turned permafrost into a carbon emitter
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Re: Climate change has turned permafrost into a carbon emitter
#12I'm really curious about marine cloudseeding as a potential mitigator to permafrost melt. Essentially, high-efficiency saltwater aerosolization to create nuclei for cloud formation... Here is a 2019 paper on the critical role of clouds in arctic cooling https://www.nature.com/articles/s41598-019-44155-w#Sec7
Here's an article on cloudseeding: https://www.forbes.com/sites/jamesconca/2019/09/10/solar-geo...
Re: Climate change has turned permafrost into a carbon emitter
#13[deleted]
Re: Climate change has turned permafrost into a carbon emitter
#14I believe this same dynamic will apply to the oceans as they warm. They're like a can of Coke. Heat it up and the carbonation goes away. It's a horrifying positive feedback loop of global warming.
And then the whole melting of sea ice thing. Sea ice is pretty much the whitest/most reflective surface on the planet. It then melts into the darkest/most absorbent surface on the planet. Are there any stabilizing forces we know about? I only ever hear about these types of positive feedback loops, and it scares the hell out of me.
This website is great at explaining tipping points and feedbacks and what we currently know: https://climatetippingpoints.info/
Re: Climate change has turned permafrost into a carbon emitter
#15For anyone wanting some more depth on this: https://climatetippingpoints.info/2019/05/13/fact-check-is-a...
Re: Climate change has turned permafrost into a carbon emitter
#16Re: Climate change has turned permafrost into a carbon emitter
#17Tropical forests are also now a carbon emitter: https://www.carbonbrief.org/tropical-forests-no-longer-carbo...
And I read this morning that some expect the Amazon to stop being a rainforest pretty soon, which would hugely accelerate tree loss.
Re: Climate change has turned permafrost into a carbon emitter
#18I believe this same dynamic will apply to the oceans as they warm. They're like a can of Coke. Heat it up and the carbonation goes away. It's a horrifying positive feedback loop of global warming.
Yup, it's a dangerous runaway train rolling down a parabolic slop
Yet the rich keep buying waterfront properties.
Re: Climate change has turned permafrost into a carbon emitter
#19I believe this same dynamic will apply to the oceans as they warm. They're like a can of Coke. Heat it up and the carbonation goes away. It's a horrifying positive feedback loop of global warming.
And then the whole melting of sea ice thing. Sea ice is pretty much the whitest/most reflective surface on the planet. It then melts into the darkest/most absorbent surface on the planet. Are there any stabilizing forces we know about? I only ever hear about these types of positive feedback loops, and it scares the hell out of me.
The primary negative feedback loop is increased photosynthesis. As CO2 concentrations rise, there's more carbon in the air that can support plant life. There also tends to be both more sunlight (warmer air can support more water vapor before it precipitates into clouds) and more water (in absolute terms, from increased evaporation).
Note that in the near term, the negative feedback of photosynthesis may be overwhelmed by changes in ecosystems: if the climate changes rapidly, whole forests may find themselves in a different biome, ocean circulation patterns may change, more freshwater may enter estuaries, etc. Plants evolve quickly, though, and most of their carbon sequestration is through algae and seaweed with short lifespans.