The elements must also be purified to avoid contamination that would affect the ability of cells to grow, another energy-intensive process. “Our goal was to track back each ingredient or component all the way to its cradle,” study co-author Derrick Risner said. The study, led by researchers at the University of California, looked at the production emissions of the substances used to grow the animal cells, which include vital nutrients, salt and sugars. But a new study suggests that the process is so energy intensive that the global warming impact could be between four and 25 times higher than beef, typically the most polluting meat. Its backers, including the Government, say it could also reduce the emissions from meat production, particularly methane from livestock, which accounts for around six per cent of global emissions. Cultivated meat is grown using animal cells, eliminating the need for rearing and slaughtering animals. Meat grown in a lab could be 25 times more costly for the environment than beef, a study has found.
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