A recent study funded by @DegreesNGO, executed by @peteirvine & others aims "to assess the impact of #SAG on Sea Surface Temperature (SST) in the Gulf of Guinea & its causes using GLENS simulations performed under high anthropogenic emission scenario (RCP8.5)."
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"Study focus on two dynamically different regions:
🔸Sassandra Upwelling in Côte d’Ivoire (SUC, located east of Cape Palmas)
🔸Takoradi Upwelling in Ghana (TUG, located east of Cape Three Points)" 2/8
Results show that "in the SUC region, under climate change, there is an increase in SST (referred to as the current climate) all year long (by 1.52 °C on average) mainly due to an < in net heat flux (lead by the > in longwave radiation) & also in weak vertical mixing." 3/8
"Under SAG, SST decreases all the seasonal cycle with its maximum in Dec (−0.4 °C) due to a reduction in the net heat flux (caused by a diminution of #SolarRadiation) & an increase in vertical advection (due to an increase in vertical temp. gradient & vertical velocity)." 4/8
"In the TUG region, under climate change, SST warming is a little more intense than in the SUC region and SST changes are driven by an increase in the net heat flux and strong stratification." 5/8
"The cooling of the SST in TUG is similar to the SUC region, but contrary to this region, the cooling
under SAG is not only explained by a decrease in the net heat flux but also by the remote forcing of
wind changes at the western equatorial Atlantic." 6/8
Read open access paper on "Impact of Stratospheric Geoengineering on Sea Surface
Temperature in the Northern Gulf of Guinea" ⬇️ mdpi.com/2225-1154/11/4…
🚨What if we bet too much on future carbon removal tech and it doesn’t deliver?
New study shows that over-relying on #CDR like DACCS & BECCS could let fossil fuel emissions continue longer, delay action, and raise costs later.
Key findings🧵1/9
2/ Many net-zero plans assume large-scale CDR. But techs like direct air capture (DACCS) & bioenergy with CCS (BECCS) are tiny today and scaling them is risky due to land, energy & cost barriers.
3/ Researchers ran 6 scenarios using GCAM:
-Stage 1: Plan for high or low CDR now
-Stage 2: Learn mid-century whether high CDR is actually feasible or not, and then adjust policy or not
They tracked emissions, energy shifts, costs & who bears the burden.
This episode dives into a radical proposal: using a buried nuclear explosion on the seafloor to break up basalt & speed up carbon removal via Enhanced Rock Weathering. The goal? Sequester 30 years of global CO2.
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This episode unpacks a preprint by Hosea Olayiwola Patrick drawing lessons from COVID-19 for solar geoengineering.
📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (09 June - 15 June 2025):
🔗:
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@InSoilClimate secured its largest funding to date through a €100 million agreement with Key Carbon, accelerating regenerative agriculture and carbon credit generation across Europe.
Canada Nickel partnered with NetCarb to scale mineral carbon sequestration at Crawford. NetCarb's tech could boost CO₂ uptake 10‑fold to 10–15 Mt/year, vs 1.5 Mt via Canada Nickel's proprietary IPT Carbonation.