Problem: Large-scale meat production has environmental problems out the wazoo, but Homo sapiens shows much reluctance to giving up meat. Possible solution: Test-tube sausage! The awkwardly named In Vitro Meat Consortium just wrapped up the first-ever international conference focused on the potential for replacing slaughtered animals with grown-in-a-lab chicken nuggets and ground beef. In theory, test-tube meat seems to have the potential to win over animal-rights activists, environmentalists, and others concerned about a protein-hungry, growing population — but can it overcome the ick factor?