Planetary Technologies Advances Ocean Carbon Storage in Nova Scotia
Planetary Technologies has initiated ocean carbon storage operations in Nova Scotia, removing over 3,600 metric tons of CO₂ since September 2023. This initiative represents a significant step toward enhancing marine alkalinity, a crucial method for mitigating climate change and achieving net-zero emissions globally.

Since commencing operations in September 2023, Planetary Technologies' facility in Nova Scotia has removed over 3,600 metric tons of CO₂. The firm utilizes ocean alkalinity enhancement by adding magnesium hydroxide to power plant outflows, which increases the ocean's capacity to absorb carbon dioxide.
In June 2025, it delivered the first independently verified ocean alkalinity enhancement carbon credits, and secured a $31.3 million contract with Frontier for future carbon removal credits. Despite its progress, ocean carbon storage faces challenges, including the need for extensive research on ecological impacts and international governance issues. The current carbon removal rate is insufficient compared to the estimated 7 to 9 gigatons needed annually to meet net-zero targets by mid-century.




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