Food for thought: carbon footprint of salmon and chicken farming mostly stems from feed, study suggests

Scientists hope emerging research into new types of animal feeds will make aquaculture more sustainable

Most of the environmental effects of farmed chicken and salmon arise from the food the animals are reared on, new research suggests.

Animal feed given to farmed chickens and salmon account respectively for at least 78% and 69% of the industries’ environmental pressures, according to a study published in the journal Current Biology.