December 23, 2015 at 11:34AM on Facebook

“What is good for farmed animals is often bad for the natural world. The cruelties of intensive indoor production are matched by the wreckage of extensive outdoor production. Free-range pig and chicken farming, practised on the current scale, can be environmentally disastrous.”
Warning: your festive meal could be more damaging than a long-haul flight | George Monbiot