This report presents a feasible and meaningful pathway towards collectively solving the ocean plastic pollution crisis. It introduces a new model designed to quantify key plastic flows and stocks in the global plastic system, estimate the quantity of ocean plastic pollution expected under six scenarios between 2016 and 2040, and assess the economic, environmental, and social impacts of the principal known solutions and technologies. They estimate the capital expenditure (capex), operating expenditure (opex), direct employment, and GHG emissions associated with each future scenario at a greater granularity than previous studies. The analysis incorporates all major land-based sources of ocean plastic pollution, including both macroplastics (>5mm) and four sources of microplastics (5mm), and highlights the factors contributing most strongly to plastic leakage to the ocean.