Could changing what we eat avert the climate crisis? New research shows we are failing to eat more than half of all the food we produce — while agriculture heats the planet to boiling point.
Less than half food grown feeds humans
Poor cows: Cattle on intensive beef farms, such as this vast ranch in California, are typically kept in grassless 'feedlots' and fed a grain-based diet to promote rapid weight gain, before they are then processed for meat.