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To ask the Secretary of State for Environment, Food and Rural Affairs, whether his Department has made an assessment of the potential merits of the proposal from Planetary Technologies and South West Water to perform a carbon sequestration trial by adding magnesium hydroxide into treated wastewater outlet pipes.
To ask the Secretary of State for Environment, Food and Rural Affairs, whether his Department has made an assessment of the potential merits of the proposal from Planetary Technologies and South West Water to perform a carbon sequestration trial by adding magnesium hydroxide into treated wastewater outlet pipes.
Greenhouse gas removal (GGR) technologies are technologies that seek to remove carbon dioxide and other greenhouse gases from the atmosphere. Technologies such as Ocean Alkalinity Enhancement (OAE) are currently being considered under this category. The Intergovernmental Panel on Climate Change now considers GGR technologies to be essential in limiting warming to 1.5 degrees. The Government has an ambition to reach 5MtCO2/year of removals by 2030, potentially rising to 23MtCO2/year by 2035.
Reaching Net Zero and achieving good environmental status in the seas is a priority for Defra. Trials which advance GGR technologies, such as the proposed trial by Planetary Technologies and South West Water, could bring us closer to being able to deploy these technologies at a large scale. Reaching Net Zero will have benefits for ocean health and ecosystems. GGR technologies such as OAE may also benefit ocean health in other ways, for example, they may temporarily help combat local ocean acidification and the related negative impacts on species and ecosystems, such as calcium carbonate dissolution of calcifying species.
Planetary Technologies have informed the Environment Agency that they wish to delay their formal application for their proposed trial for a period of approximately 6 to 12 months. A new application will be considered as and when it is received.