Jian Peng PhD MBA The Seaweed Innovation Forum 5282021 Outline The global carbon problem Challenges in carbon sequestration A conceptual scheme using giant kelp farming Technology Concept ID: 1026545
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1. Carbon Sequestration via Seaweed Farming – A Conceptual ApproachJian Peng, PhD, MBAThe Seaweed Innovation Forum5/28/2021
2. OutlineThe global carbon problemChallenges in carbon sequestrationA conceptual scheme using giant kelp farmingTechnology ConceptGlobal ImpactPotential Implementation
3. The Global Carbon ProblemCO2 accounts for 70% of global warmingIrreversible, catastrophic climate disaster possibleThe Paris Agreement: Carbon Neutral by 2050Current carbon shortfall: XX tons/yrCurrent and projected efforts may be too little, too late
4. Challenges in Carbon SequestrationThe Tragedy of the Commons problemNeed for food, economic growth, and well-beingTechnology limitations and costs
5. A Conceptual SolutionTechnology ConceptGlobal ImpactPotential Implementation
6. Giant Kelp Farming For Carbon Sequestration – Technical Concept
7. The Plan View of A Kelp FarmWind turbine-powered pump brings nutrient-rich deep water to surface for kelp growth
8. Giant Kelp for Carbon SequestrationGiant kelp growth rate: 0.42-2.38 kg/m2/yr (Reed et al, 2008)Annual global fossil carbon output: 8.2 gigaton in 2020 (Statista, 2021)Of these, 60% or 4.9 gigaton will be net flux into atmosphere (Siegenthaler and Samiento, 1993) 2-12 million km2 0.5% - 3.3% of the global ocean surface(For reference, the area of the continental US is 8 million km2)4.9 gigaton = $100 billion worth of carbon credit (World Bank, 2021)Can we do it???
9. Nutrients in Global OceanSource: Kibria et al, 2019Depth(m)04000[N] (ug/L)40
10. Optimal Areas for Giant Kelp
11. Global Ocean Circulation
12. The Ocean Conveyor Belt
13. Conceptual Implementation PlanTesting, permitting, funding will take up to 5 years5 years and beyond – full scale implementationBusiness model based on carbon credit P&LLong-line technology tested successfully at California CoastSeeking collaborators on implementing off California coast and elsewhere
14. Questions?Jian Peng, PhD, MBAjianpengusc@yahoo.com949-981-6723