Greenhouse Gas Emissions

Agriculture is fundamental to all three pillars of sustainability, environment, society, and economy. However, the definition of sustainable agriculture and the capacities to measure it remain elusive. Independent and transparent measurements of national sustainability are needed to gauge progress, encourage accountability, and inform policy. Here, we developed a Sustainable Agriculture Matrix (SAM) to quantify national performance indicators in agriculture and to investigate the trade-offs and synergies based on historical data for most countries of the world.
Local authorities in the United Kingdom are recognised by central government as key agents to achieving the national net zero target aimed at stabilising global temperatures at or below 1.5 degrees in line with the Paris Climate Agreement. Since 2018, over 75% of local authorities have declared climate emergencies committing to achieving net zero greenhouse gas emissions. This paper presents the findings of a review of official public records published by 308 local authorities, City Regions and Combined Authorities declaring climate emergencies.
Western diets are characterised by a high intake of meat, dairy products and eggs, causing an intake of saturated fat and red meat in quantities that exceed dietary recommendations. The associated livestock production requires large areas of land and lead to high nitrogen and greenhouse gas emission levels. Although several studies have examined the potential impact of dietary changes on greenhouse gas emissions and land use, those on health, the agricultural system and other environmental aspects (such as nitrogen emissions) have only been studied to a limited extent.