SAN DIEGO/WADENSWIL, Switzerland ¨C Puro.earth, a self-appointed ¡°carbon-removal certifier,¡± is seeking to establish a new accredited means of carbon sequestration: dumping bundled biomass (wood or crop waste) into the ocean.
At least two companies are already selling carbon credits based on plans to dump biomass in the Black Sea. But ¡°ocean storage of biomass¡± (OSB) lacks scientific verification and highlights the risks of commercializing unproven climate interventions.
The idea is that ¡°degradation-resistant biomass¡± would be dumped into the Black Sea basin, where anoxic (oxygen-free) conditions would further slow or even halt degradation. As a result, the approach¡¯s proponents claim, the carbon would effectively be removed from the biological cycle for over 1,000 years, with minimal environmental impact. But there is no scientific evidence that this is true.
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