FAP, May 11 (Xinhua)-- Meat produced by cultured cells may have 25 times more impact on the climate than beef, according to a new analysis by US scientists. The related research has been submitted to the biological preprint website. Laboratory-grown meat, made by culturing animal stem cells around the scaffold in nutritious "broth", is considered a more environmentally friendly alternative to traditional meat, which uses less land, feed, water and antibiotics than traditional meat. it does not need to raise and slaughter livestock, which is the main source of greenhouse gases. But in a new study, Derek Risner of the University of California, Davis and his colleagues found that the global warming potential of growing meat (the carbon dioxide emitted by producing one kilogram of meat) is 25 times higher than that of ordinary beef.