I.J.M. de Boer

TL;DR: Differences in environmental impact among pork, chicken, and beef can be explained mainly by 3 factors: differences in feed efficiency, differences in enteric CH4 emission between monogastric animals and ruminants, and differences in reproduction rates.

TL;DR: In this article, two Dutch milk production systems, i.e., a conventional and an organic, were compared on their integral environmental impact and hotspots were identified in the conventional and organic milk production chains.

TL;DR: The livestock and environment nexus has been the subject of considerable research in the past decade as mentioned in this paper with a growing concern about how to accommodate this increase in demand with a low environmental footprint and without eroding the economic, social, and cultural benefits that livestock provide Most of the effort has focused on sustainably intensifying livestock systems.

TL;DR: In this paper, the authors compared 14 studies that compared contrasting systems using life cycle assessment (LCA) using three main characteristics of beef production: origin of calves (bred by a dairy cow or a suckler cow), type of production (organic or non-organic) and type of diet fed to fattening calves.

TL;DR: In this paper, the authors show that compared to current animal-source foods, future foods have major environmental benefits while safeguarding the intake of essential micronutrients, and if produced with renewable energy, they also offer greenhouse gas benefits.