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By addressing food loss and waste, greenhouse gas emission mitigation is also addressed. By only focusing on dairy systems of 20 value chains in 12 countries, food loss and waste could be reduced by 4-10%. [75] These numbers are impactful and would mitigate greenhouse gas emissions while still feeding the population. [75]
The two most notable greenhouse gases are carbon dioxide and methane. [29] Greenhouse gas emissions, and hence humanity's carbon footprint, have been increasing during the 21st century. [30] The Paris Agreement aims to reduce greenhouse gas emissions enough to limit the rise in global temperature to no more than 1.5°C above pre-industrial ...
The 2024 UNEP Food Waste Index Report, "Think Eat Save: Tracking Progress to Halve Global Food Waste," addresses the severe issue of food waste that accounts for US$1 trillion in losses, 8–10% of global greenhouse emissions, and the unnecessary use of 30% of the world's agricultural land, exacerbating hunger and affecting child growth.
According to the Food and Agriculture Organization (FAO), food waste is responsible for 8 percent of global human-made greenhouse gas emissions. [197] The FAO concludes that nearly 30 percent of all available agricultural land in the world – 1.4 billion hectares – is used for produced but uneaten food.
However, a review of methane emissions studies reveals that the EPA Inventory of Greenhouse Gas Emissions and Sinks: 1990–2015 report likely significantly underestimated 2015 methane emissions from the oil and natural gas supply chain. The review concluded that in 2015 the oil and natural gas supply chain emitted 13 Tg per year of methane ...
Livestock produces the majority of greenhouse gas emissions from agriculture and demands around 30% of agricultural freshwater needs, while only supplying 18% of the global calorie intake. Animal-derived food plays a larger role in meeting human protein needs, yet is still a minority of supply at 39%, with crops providing the rest. [79]: 746–747
The widespread adoption of a vegetarian diet could cut food-related greenhouse gas emissions by 63% by 2050. [110] China introduced new dietary guidelines in 2016 which aim to cut meat consumption by 50% and thereby reduce greenhouse gas emissions by 1 Gt per year by 2030. [111]
Global map of greenhouse gas (GHG) emissions, including agriculture and land use change, measured in carbon dioxide-equivalents over a 100-year timescale. [1] Annual GHG emissions by region, including agriculture and land use change, measured in carbon dioxide-equivalents over a 100-year timescale [2] Per capita annual GHG emissions, including agriculture and land use change, measured in ...