🚨REVIEW PAPER🚨 #Hydrogen, a green energy carrier, is one of the most promising energy sources. However, it is currently mainly produced from depleting #FossilFuels with high #carbon emissions, which has serious -ve effects on the economy and environment. #HyBECCS #ATT
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To address this issue, sustainable hydrogen production from bio-energy with #carbon capture and #storage (#HyBECCS) is an ideal technology to reduce global carbon emissions while meeting energy demand. 2/6
So, a recent review presents an overview of "the latest progress in alkaline thermal treatment (#ATT) of #biomass for #hydrogen production with #carbon storage, mainly focusing on the technical characteristics & related challenges from an industrial application perspective." 3/6
Additionally, the roles of alkali and catalyst in the #ATT process are critically discussed in the review, and several aspects that have great influences on the ATT process are expounded, such as:
🔸biomass types
🔸reaction parameters
🔸reactors 4/6
Review concluded that "compared with WGS, MEC, SMR, #biomass dark fermentation & gasification, #ATT of biomass for #H2 production has the benefits of:
🔸wide range of feedstocks
🔸low energy consumption
🔸high purity of H2
🔸#NegativeCarbonEmission from entire LC of biomass 5/6
Read the open access review on sustainable hydrogen production from bio-energy with carbon capture and storage (HyBECCS) here ⬇️ sciencedirect.com/science/articl…
🚨In a new study published in @OneEarth_CP, researchers reveal that human land activities have stripped away roughly 24% of terrestrial carbon stocks (equivalent to 344 billion metric tons of C), underscoring an urgent need to reframe land-use & climate policy.
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2/ Plants + soils store more carbon than the atmosphere + all fossil reserves combined.
But farming, grazing, and forest use have stripped away this natural shield, turning land from a carbon bank into a carbon source.
3/ Researchers call this loss the terrestrial carbon deficit - the gap between what ecosystems could hold (‘potential’) vs. what they actually hold (‘actual’).
A NEW study suggests Stratospheric Aerosol Injection (#SAI) could help prevent the decline of the Atlantic Meridional Overturning Circulation (#AMOC), but only if aerosols are injected in the appropriate latitude & hemisphere.
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2/ The AMOC is a key component of Earth’s climate system, transporting heat and nutrients across the Atlantic.
Its decline, already underway, is projected to accelerate under global warming, possibly approaching a tipping point this century.
3/ Using CESM2(WACCM6), Bednarz et al. ran sensitivity experiments with SO₂ injections at latitudes from 45°S to 45°N.
Each scenario injected 12 Tg-SO₂/yr (2035–2069) to test how SAI location affects AMOC stability.
🚨Enhanced Rock Weathering (#ERW) could remove up to 700 Mt CO₂ by 2070 in the UK if quarry production scales 5–10×.
Larger extraction sites boost efficiency but raise major social, logistical & policy challenges.
A new @CommsEarth study models the trade-offs.🧵1/11
2/ ERW involves spreading crushed silicate rocks on croplands to capture CO₂.
While previous studies examined its chemistry & agronomic benefits, this work focuses on the supply chain: can the UK sustainably scale rock extraction to meet net-zero needs?
3/ The authors model deployment from 2025–2070 under 3 supply scenarios:
Low (32 Mt rock/yr), medium (97 Mt rock/yr) & high rock (166 Mt rock/yr) demand with variations in whether expansion relies on active, inactive, or new quarries.
🚨A new CSIRO-led study finds Australia can achieve net-zero emissions cost-effectively by 2050 if it acts early.
Rapid decarbonisation of electricity, scaled #CarbonRemoval, and strategic land offsets are central to success.
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2/ The research adapts the IEA’s global net-zero scenarios to Australia’s economy using an integrated economic–energy model.
It compares a Rapid Decarbonisation pathway, consistent with limiting warming to 1.5 °C, with a Stated Policies path leading to ~2.6 °C by 2100.
3/ Electricity emerges as cornerstone. In rapid pathway, coal is 85% retired by 2030 & fully phased out by 2035.
Renewables supply ~90% of generation by 2030, cutting emissions intensity to ~15% of 2020 levels & enabling deeper decarbonisation across various sectors.
📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (04 August - 10 August 2025):
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Evero’s Ince biomass plant will be converted into the UK’s first BECCS site by 2029, capturing 217,000 t CO₂/year, processing 170,000 t waste wood, and powering 100,000+ homes.