CO2 – Approximately 4 kilograms of CO2 per kilo product compared to 14 + kilograms of CO2 for net pen imports and up to 60 kilograms of CO2 for domestic red meat. Carbon-free power, avoidance of airfreight, fishmeal-free fish feed, and local/regional market are the most important factors reducing CO2 emissions in the Katahdin Salmon case. No other 100% renewable power case exists.