๐จNEW STUDY๐จ
"Six models are used in a recent study to analyze the climatic, environmental & socio-economic consequences of #overshooting a C budget consistent with the 1.5ยฐC temp target along the cause-effect chain from emissions & #CarbonRemovals to climate risks & impact."
๐งต
"Global climatic indicators such as CO2-concentration and mean temperature closely follow the #CarbonBudget#overshoot with mid-century peaks of 50 ppmv and 0.35ยฐC, respectively."
2/10
Findings of this study highlight that "investigating #overshoot scenarios requires temporally and spatially differentiated analysis of climate, environmental and socioeconomic systems."
3/10
Researchers find "persistent and spatially heterogeneous differences in the distribution of #carbon across various pools, ocean heat content, sea-level rise as well as #economic damages."
4/10
"Moreover, it was find in the study that key impacts, including degradation of marine ecosystem, heat wave exposure & economic damages, are more severe in equatorial areas than in higher latitudes, although absolute #temperature changes are stronger in higher latitudes."
5/10
"The detrimental effects of a 1.5 ยฐC warming and the additional effects due to #overshoots are strongest in non-OECD countries (Organization for Economic Cooperation and Development)."
6/10
"Constraining the overshoot inflates CO2 prices, thus shifting #CarbonRemoval towards early #afforestation while reducing the total cumulative deployment only slightly, while mitigation costs increase sharply in #DevelopingCountries."
7/10
"Thus, scenarios with C budget overshoots can reverse global mean temp increase but imply more persistent & geographically heterogeneous impacts. Overall, the decision about #overshooting implies more severe trade-offs btw #mitigation & impacts in #DevelopingCountries."
8/10
Read the study led by @NB_pik entitled: "Exploring risks and benefits of overshooting a 1.5 ยฐC carbon budget over space and time" here โฌ๏ธ iopscience.iop.org/article/10.108โฆ
Our โCarbon Removal Updates Newsletterโ community keeps growing, now past ๐ฐ,๐ฌ๐ฌ๐ฌ subscribers across every continent. Weโve delivered 146+ weekly CDR updates & reached ๐ฑ๐ฌ๐ฌ,๐ฌ๐ฌ๐ฌ+ total views.
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๐บ๐ธUnited States: 33% (largest share of subscribers)
๐ฌ๐ง United Kingdom: 13% & ๐ฉ๐ชGermany: 8% lead our European readership
๐ฎ๐ณ India: 5% tops the Asia-Pacific region
๐จ๐ฆ Canada: 5% represents a significant share of our North American audience
๐จ The Royal Society has published a new briefing today finding that techniques to reflect a small portion of sunlight back into space (#SRM) could help lower global temperatures if deployed worldwide, but cannot replace emissions cuts or fully address climate impacts.
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2/ โ The report reviews solar radiation modification (#SRM) approaches, including stratospheric aerosol injection (#SAI) and marine cloud brightening (#MCB), outlining their potential to temporarily reduce warming and associated risks.
3/ โ It notes that SRM would only mask the effects of GHG emissions and would not address issues such as ocean acidification.
๐จ๐ฒ New research reveals that even intact boreal forests, some of the planetโs strongest natural carbon sinks, lose their ability to absorb COโ as they age.
Hereโs what the scientists found & why it matters for our climate models๐งต1/9 #CarbonSink #CarbonRemoval
2/ Boreal forests cover vast regions across Canada, Russia, and Scandinavia and store enormous amounts of carbon in trees and soil.
Theyโre often seen as stable, long-term carbon sinks, but this study challenges that assumption with new global-scale data.
3/ Using seven global Net Ecosystem Productivity (NEP) datasets and a high-resolution forest age map, researchers tracked how C uptake changes as forests grow older.
They used a space-for-time substitution method, comparing forests of different ages to infer long-term trends.
๐จA major 6-country survey (N=5,310) finds Europeans support -ve emissions to meet climate goals, but strongly prefer nature-based solutions like afforestation over engineered options like Direct Air Capture. Trust hinges on benefits for nature & future generations.
๐งต1/10 #CDR
2/ When allocating how to tackle emissions, respondents clearly prioritized immediate mitigation:
๐จA new study warns that efforts to cool the planet through stratospheric aerosol injection (#SAI) could face far greater challenges than models predict, from unpredictable monsoon shifts to material shortages & engineering limits, every step adds new risks.
๐งต1/8 #SRM
2/ The authors explore both micro-level (engineering) and macro-level (governance & supply) factors that could restrict feasible deployment.
Key finding: these constraints could drastically raise costs, risks, and uncertainty, especially for โsolidโ (non-sulfate) aerosols.
3/ Traditional SAI uses sulfate aerosols (like volcanoes).
But alternatives, CaCOโ, TiOโ, AlโOโ, ZrOโ, even diamond, promise less ozone damage.
Yet producing, aerosolizing, and dispersing these solids in submicron form is technically daunting.