This mechanism and permafrost melt are two of the main feedback loops associated with non-anthropogenic warming. Whether they're properly accounted for in climate models is a key question.
The IPCC reports account for a lot of things but for political reasons have been conservative in many of their estimates because certain countries are not fond of the implications of our sustainable lifestyle.
It is hard to imagine where you live [1], somewhere in Africa? And these "certain countries" evangelize consumerism?
Or is it a typo in "our unsustainable lifestyle"? Can't understand it either. Negative change in CO₂ emissions is a rare event [2].
Even entire world 0 tonnes per capita emissions today will result in 1.5°C warming [1].
How about 2°C [2]? Maybe with 0.1 tonnes per capita, 0.78 Gtonne worldwide. That's [3]
Democratic Republic of Congo 0.02 t
Somalia 0.05 t
Burundi 0.05 t
Central African Republic 0.06 t
Chad 0.07 t
Malawi 0.08 t
Rwanda 0.09 t
Niger 0.10 t
[1] https://ourworldindata.org/grapher/co2-mitigation-15c
[2] https://ourworldindata.org/grapher/co2-mitigation-2c
[3] https://ourworldindata.org/per-capita-co2
[4] https://ourworldindata.org/co2-and-other-greenhouse-gas-emis...
No it isn't, it's around (under, really) 10%. CO2 from US transportation alone is 6.7 billion tonnes, vs 4.8 for all tropical deforestation (which is the place land use for livestock takes place). It is a common misconception that land use or agriculture are significant drivers of climate change. They are of course tremendously damaging in their own particular ways (eg water/runoff/biodiversity), but globally energy, and fairly close behind it transportation, are by far the largest causes of increased greenhouse gas emissions.