UK Scientists Urge Delay On Massive-Scale Ocean Carbon Elimination

Researchers from Plymouth Marine Laboratory (PML) and the University of Exeter are warning in opposition to fast enlargement of carbon elimination through Direct Ocean Carbon Capture and Storage (DOCCS) till its environmental results are higher understood.

In a paper revealed in Frontiers in Climate, the crew presents the primary in-depth assessment of DOCCS impacts, drawing on present research and outcomes from their SeaCURE pilot project. 

The expertise removes dissolved inorganic carbon from seawater, then returns the decarbonized, high-pH water to the ocean, the place it naturally absorbs extra CO2.

While ocean carbon elimination may play a task in local weather mitigation, lead creator Guy Hooper cautioned that with out correct safeguards, the method may hurt marine organisms. 

“It’s clear from our lab-based experiments that returning treated decarbonized and high pH seawater to the Ocean, without sufficient dilution, could place stress on certain marine organisms,” he mentioned.

Key considerations embody diminished carbon availability for photosynthetic and shell-building organisms, potential physiological stress from elevated pH, and unknown ecosystem-wide impacts.

Relevant: Opinion: Ocean-Based Solutions: The Missing Link In Shipping’s Decarbonization Strategy

The researchers name for additional lab experiments, long-term monitoring, mesocosm trials, and chemical modelling earlier than business deployment. 

Co-author Helen Findlay careworn that “environmental research must keep pace with technological development to ensure these promising potential ‘solutions’ don’t cause unintended harm.”

Pilot DOCCS tasks are already underway within the UK and elsewhere. The authors hope their findings will assist form business requirements and local weather coverage.

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