Controversial carbon capture plans in west Cornwall have been scrapped, it has been confirmed.
The Planetary Technologies team wanted to release magnesium hydroxide into St Ives Bay and monitor how the chemical affected ocean acidity and carbon dioxide levels.
However, some people opposed the idea and the impact on wildlife and the environment.
On Wednesday, the company said the "scale-up of operations in Cornwall has been assessed as commercially unviable and we will not be pursuing a wider programme in the region."
The Planetary Technology team from Canada wanted to release Magnesium Hydroxide into St Ives Bay
>> In Other News: CO280 Signs Landmark 3.69 Million Tonne Agreement with Microsoft to Scale-up Carbon Dioxide Removal in the US Pulp and Paper Industry
On the company's website it said: "We worked with local utility South West Water and proposed the addition of a diluted form of the mineral magnesium hydroxide to the existing water flow at the water treatment plant in Hayle.
The company said adding the alkaline compound to the sea would help counter ocean acidity caused by climate change.
It said: "Planetary has successfully completed its trial operations in Cornwall, UK, gathering valuable scientific data and insights.
"Although the trial demonstrated great potential, we have decided not to pursue a full programme in Cornwall due to commercial infeasibility."
A spokesperson for Planetary Technologies added: "Cornwall has played a meaningful role in our development, and we are deeply grateful to the local partners, community, and team members who have supported our mission."
St Ives MP Andrew George said "more research and robust studies" needed to be carried out before chemicals were released into the environment.
He said: "There remained uncertainty regarding the potential impact of pumping these chemicals on marine wildlife.
"The studies undertaken had not satisfied the Cornwall Carbon Scrutiny Group, in that the baseline data remained incomplete, the control and diffuser sites weren't comparable and the target study species were not present at the time of the trials."
George said the decision was "good common sense for Cornwall, seals, safe seas and local economy".
Follow the money flow of climate, technology, and energy investments to uncover new opportunities and jobs.
Inside the Issue π Global Leaders Converge in Edmonton September 23-25 for Carbon Capture Canada as Federal Government Expected to Boost Industrial Carbon Pricing in Fall 2025 βοΈ Delta Partners Wi...
Inside This Issue π EPA Releases Proposal to End the Burdensome, Costly Greenhouse Gas Reporting Program, Saving up to $2.4 Billion π California to Extend Cap-and-trade Program Aimed at Advancing ...
Inside this Issue βοΈ CORSIA Transforms Aviation Compliance Into Market Gold Rush π IEA Cuts 2030 Low-emissions Hydrogen Production Outlook by Nearly a Quarter π€ GenH2 Executive Chairman Josh McMor...
More than 5,000 attendees are expected at Canadaβs national Carbon Capture, Utilization and Storage (CCUS) convention to address industry opportunities in the sector from geopolitical advantage to ...
1PointFive and NYK Announce Carbon Removal Agreement
Second NYK transaction continues to build momentum for Direct Air Capture as a solution for the maritime sector HOUSTON, Sept. 17, 2025 (GLOBE NEWSWIRE) -- 1PointFive, a carbon capture, utilizatio...
Led by cornerstone investors Alaska Airlines, American Airlines, with International Airlines Group (IAG), Cathay Pacific, and Japan Airlines from oneworld alliance, and Singapore Airlines as part o...
Eaton to Showcase Technologies for Hydrogen-Powered Commercial Vehicles at IAA Transportation 2024
HANOVER, Germany--(BUSINESS WIRE)--Intelligent power management company Eaton announced it will showcase a broad range of innovative solutions for hydrogen-powered commercial vehicles September 17β...
Follow the money flow of climate, technology, and energy investments to uncover new opportunities and jobs.