Yes, particulates are important but uncertain. Some say they could cause a warming of up to 0.5°C if they are mitigated to zero...
If we rely on CO₂ removal, but it is not deployed or is unsuccessful at removing CO₂ from the atmosphere at the levels assumed in scenarios, then society will be locked into a high-temperature pathway https://www.scientificamerican.com/article/how-much-co2-will-the-world-have-to-remove-from-the-atmosphere/ …pic.twitter.com/BqSGF4F3zv
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Those are the direct effects, secondary effects on clouds and precipitation regimes as well as changes in ENSO cycles indicate even more warming with an upper threshold > 1.2C if stopped immediately, with more carbon cycle feedbacks from tropical rainforests under perm El Nino.
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Your graphic has changed? This one I added the Carbon Cycle emissions that are conservatively expected over 50 years in Crowther et. al. more recent studies suggest that this amount could come from temperate forests alone https://www.washingtonpost.com/news/energy-environment/wp/2017/10/05/one-of-the-oldest-climate-change-experiments-has-led-to-a-troubling-conclusion/?utm_term=.4ac4e6ce7893 … when will you add carbon cycle?pic.twitter.com/3aI1iWMGfh
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Yup, that's about right IMHO.
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Why is negative emissions synonymous with
#BECCS? We should work towards a broader portfolio. Biochar, reforestation, Enhanced Weathering etc. etc. Not solely focussing (or relying) on BECCSThanks. Twitter will use this to make your timeline better. UndoUndo
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By Society, do You mean, The World Population ? Surely, The World Population, would only be locked into, a High-Temperature Global Warming Pathway, if they are entirely uncaring and disobedient, to the principle of having to reduce, their own use of Carbon Energy.
@KevinClimatepic.twitter.com/96ymszGPQi
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Or we could just "assume a can opener" and hope for the best
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Is there scientific proof that global temperature will go down, when the
#CO2 level goes down from overshoot to below 1,5 degrees,@peters_glenThanks. Twitter will use this to make your timeline better. UndoUndo
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So if CDR doesn’t happen at the scale needed then the only way to avoid very serious climate disruption is some sort of solar radiation management
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Don't rely on CO2 removal or any other one thing. Do everything we are doing now as we stumble into a renewably powered, high efficiency zero emissions economy Geotherapy (https://www.crcpress.com/Geotherapy-Innovative-Methods-of-Soil-Fertility-Restoration-Carbon-Sequestration/Goreau-Larson-Campe/p/book/9781466595392 …) & other carbon draw down techniques can be useful in an integrated system
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Can these solutions do the needed CDR? I guess something like this scenario?https://www.nature.com/articles/ngeo1741 …
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