OAE

Just ahead of the 2026 F1 season opener, Mercedes-AMG PETRONAS has announced what may be motorsport’s most comprehensive carbon removal investment to date: 7 new CDR projects across 6 different technology pathways, bringing the team’s total portfolio to approximately 18,900 tonnes of CO₂ equivalent. The technologies span the full CDR spectrum: Direct Air Capture (DAC) Biochar Enhanced Rock Weathering (ERW) Ocean Alkalinity Enhancement (OAE) Bioenergy with Carbon Capture and Storage (BECCS) Biomass Storage Projects are located across Brazil, Canada, the US, the UK, Denmark, and India — deliberately overlapping with regions where the F1 circus races. ...

The first ship-based ocean alkalinity enhancement (OAE) experiment just delivered results. Woods Hole Oceanographic Institution poured 65,000 litres of sodium hydroxide into the Gulf of Maine in August 2025, and the findings are cautiously encouraging: 2–10 tonnes of CO₂ removed in four days, with up to 50 tonnes estimated total. No significant impact on marine life detected. Adam Subhas and his team presented these findings at the Ocean Sciences Meeting 2026 in Glasgow. “We can definitely say that there was additional CO₂ uptake as a result of this experiment,” Subhas said. ...

Formula 1 teams aren’t usually associated with carbon removal. But Mercedes-AMG PETRONAS just made one of the most diversified CDR investments any sports organization has ever announced. Seven Projects, Six Pathways The team added seven new removal projects covering: Direct Air Capture (DAC) Biomass Storage Bioenergy with Carbon Capture and Storage (BECCS) Biochar Ocean Alkalinity Enhancement (OAE) Enhanced Rock Weathering (ERW) Combined with earlier investments through Frontier and Chestnut Carbon, the total portfolio now covers approximately 18,900 tCO₂e across Brazil, Canada, the US, UK, Denmark, and India. The portfolio is curated by CUR8, a carbon removal marketplace focused on rigorous project evaluation. ...

The Woods Hole Oceanographic Institution (WHOI) has released preliminary findings from the first U.S. Environmental Protection Agency–permitted ocean alkalinity enhancement (OAE) field trial. The results, presented at the biennial Ocean Sciences Meeting in Glasgow, represent a significant step forward for marine carbon dioxide removal. What Happened In August 2025, the LOC-NESS (Locking Ocean Carbon in the Northeast Shelf and Slope) team conducted a six-hour dispersal of 65,000 liters of highly purified sodium hydroxide — a common water treatment chemical — into the surface waters of the Wilkinson Basin in the Gulf of Maine. A red tracer dye (Rhodamine Water Tracer) was released alongside it to track the alkalinity patch. ...

First US ocean CDR bill introduced, WHOI’s alkalinity trial shows no marine harm, forward carbon credit deals hit $5.8B, and Sweden freezes a BECCS project. Your daily carbon removal roundup.