Reducing the land use of EU pork production: where there's swill, there's a way.

摘要: Livestock production occupies approximately 75% of agricultural land, consumes 35% the world’s grain, and produces 14.5% anthropogenic greenhouse gas emissions. With demand for meat dairy products forecast to increase 60% by 2050, there is a pressing need reduce footprint livestock farming. Food wastes have long history as source environmentally benign animal feed, but their inclusion in feed currently banned EU because disease control concerns. A number East Asian states last 20 years, however, introduced regulated, centralised systems safely recycling food into feed. This study quantifies land use savings that could be realised changing legislation promote reviews policy, public, industry barriers waste Our results suggest application existing technologies pork (20% world production) one fifth, potentially saving 1.8 million hectares land. While swill presents low-cost, low-impact widespread adoption would require efforts address consumer farmer concerns over safety control.