Fig. 3: Total and marginal effects of substituting seaweed on land use, emissions, water use, nitrogenous fertilizer use and biodiversity intactness.
From: Reducing global land-use pressures with seaweed farming
a, The effects of seaweed substitution (i–v) were calculated using GLOBIOM by comparing a baseline run (that is, no growth in seaweed consumption by 2050). For each scenario, seaweed substitution is assumed to grow linearly from 2020 to 2050 to meet the scenario target (Table 1). b, The marginal global benefits (i–v) per Mha of sea-use change required for each scenario. The range of uncertainty (error bars) corresponds to assumptions of minimum, mean and maximum seaweed production values (see Spatial prioritization).
