The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.

This quantity is a single measurement of the quantity at a given point in time (2021).


Value:		≈ 750 - 1500 kg CO₂e / t see this value in other units This is equivalent to... ≈ 750 - 1500 kg CO₂e / kg
HuID:		40361
Relevant Year(s):		2021
Summary:		The amount of carbon dioxide (CO₂) equivalent greenhouse gas emissions from the production of farmed seaweed. This includes every step of the process, including drying, which is a large portion of greenhouse gas emissions from seaweed production.
Method:		This value comes from a compilation of life cycle analysis studies. They used hierarchical Bayesian modeling to estimate both off-farm and on-farm stressors at the species level and used global production values to obtain means for taxonomic groups. The upper and lower bounds reported represent 50% of the width of the distribution of the parameter obtained from Bayesian modeling.
Source:		Gephart, J.A., et al. Environmental performance of blue foods. Nature (2021)
Dataset:		Estimated environmental stressors for various aquatic foods (Gephart2021_fig_1_data.csv) global resolution
Original Data License:		No Stated Copyright - Contact authors directly
Added By:		rbanks