To the editor:Most people aren’t aware animal agriculture is one of the leading causes of climate change. Scientists believe cultivated meat will eventually require a fraction of the greenhouse-gas emissions that slaughtered options do. The basic science of making cultivated meat is already known. However, important technological hurdles remain, which are preventing the new protein from being mass produced at a competitive price. For the sake of the environment, let’s build facilities like the Tufts University Center for Cellular Agriculture at schools across the country.