The Intergovernmental Panel on Climate Change (IPCC) has made clear that large-scale CDR, of between 1 gigatons, will be needed this century to stand a chance of holding temperatures to a 1.5☌ increase-the goal set out in the Paris Agreement. David Koweek, Ocean Visions Science Director and a lead author of the report. “This report will help accelerate the comprehensive science society needs to determine what role seaweed might play in addressing the climate crisis,” says Dr. However, beyond a small number of modeling studies and studies of natural systems that exhibit similar behavior, there is a lack of information necessary to make well-informed decisions about the effectiveness and environmental impacts (both beneficial and detrimental) of sinking seaweed into the deep ocean as a carbon dioxide removal (CDR) strategy. Though still in early stages, seaweed cultivation and sequestration technologies have attracted serious attention and investment. Recently, proposals have emerged to cultivate seaweed and then sink the biomass to the deep ocean to sequester the carbon inside and allow the ocean to remove excess carbon dioxide from the atmosphere. Seaweeds are a fast-growing marine species that sequester carbon from seawater in their living tissue. The report was designed by an international working group led by Ocean Visions and MBARI consisting of members across academia, government, and industry.
Also included in the report is a budget tool to support resource allocation for field experiments, as well as a table of existing oceanographic assets, infrastructure, and pilot projects. The new report outlines a research agenda that is designed to generate actionable information on cultivating and sinking seaweed at scales that can measurably affect global carbon emissions and the warming associated with it. David Koweek, Ocean Visions Science DirectorATLANTA, GEORGIA, USA, Octo/ / - Ocean Visions and partner Monterey Bay Aquarium Research Institute (MBARI) have released a framework intended to guide the research needed to assess the efficacy and impacts of cultivating and sinking macroalgae (seaweed) for the purpose of sequestering carbon in the deep ocean and locking it away from the atmosphere as a means to help slow climate change.
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