Showing results for: Food chain stage
The food chain describes the physical flow of goods from agriculture through processing and distribution, to retailing to eventual consumption and waste disposal. The papers and reports in this category highlight the different issues and impacts associated with each particular stage of the food chain.
California agritech startup Iron Ox has unveiled an “autonomous farm”, where robots move plants and transplant them from one stage to the next. Artificial intelligence controls pests and diseases and adjusts growing conditions. The farm is not entirely automated, as humans still sow seedlings and package the harvested crops. The farm produces leafy greens and herbs.
A quarter of survey respondents claim that healthy and nutritious food in the UK is too expensive, while 10 million people live in “food deserts”, according to a report by London-based think tank the Social Market Foundation. The report examined three barriers to healthy eating: prices, affordability (relative to income) and access to food stores.
A paper argues that current definitions of ultra-processed foods are inconsistently applied. Furthermore, while higher consumption of ultra-processed foods is associated with higher sugar intake and lower fibre intake, the paper claims that intakes of fat, saturated fat and salt are not associated with ultra-processed food consumption. The paper questions the policy recommendation that ultra-processed foods should be avoided.
The book “Changing the food game: market transformation strategies for sustainable agriculture”, written by Lucas Simons, discusses how markets can be changed to support a sustainable food system. Chapter topics include how food production impacts the world, market failures, and phases of market transformation.
The UK’s Department for Environment, Food and Rural Affairs has published “Health and Harmony: the future for food, farming and the environment in a Green Brexit” - a summary of the responses to its consultation.
Rice cultivation emits methane and nitrous oxide, which are both more potent greenhouse gases than carbon dioxide. Policies to reduce methane emissions from rice farming generally recommend using intermittent (as opposed to continuous) flooding. However, intermittent flooding could produce much higher nitrous oxide emissions than continuous flooding, according to a recent paper.
A traditional variety of corn grown by people from Sierra Mixe in southern Mexico can thrive in poor soils without needing much extra fertiliser. A group of researchers have shown that the plant is able to draw nitrogen from the air through mucus-laden aerial roots on its stems. It’s hoped that the trait can eventually be bred into commercial corn strains.
This book, edited by Ramesh Namedo Pudake, Nidhi Chauhan, and Chittaranjan Kole, highlights ways in which nanomaterials can be used in agriculture. The book covers both social and environmental aspects.
The Food and Agriculture Organisation of the United Nations has released the September 2018 version of its quarterly reports, “Crop prospects and food situation”. According to the report, 39 countries currently require external food assistance, driven by conflicts and climate-related shocks. Of those countries, 31 are in Africa, seven are in Asia, and the remaining one is Haiti. World cereal production in 2018 is estimated to be 2.4% lower than in 2017, which saw a record high.
Utilities company Veolia and plastics charity RECOUP have together released the report “Plan for plastics”, which considers how the UK can improve plastic recycling. The report finds that 93% of people think plastic bottles should be made with recycled materials and are willing to pay 2.5 pence more, on average, for a recycled bottle (compared to a non-recycled bottle). Less than 5% of plastic film is currently recycled, compared to 59% of plastic bottles.
In a technical report, the American Academy of Pediatrics outlines the health concerns associated with several classes of food additives (including those unintentionally added to food, e.g. from packaging), including bisphenols, phthalates, perfluorinated compounds, artificial food colours, and nitrates and nitrites. The report notes that children may be particularly susceptible to the effects of these additives because of their lower body weight and because their metabolic systems are still developing.
Birds catch insects less frequently in silvopastures (grazing land with substantial tree cover) than in forest fragments, according to a study in the Colombian Andes. This suggests that silvopasture provides relatively lower quality habitat for the bird species studied. However, the paper proposes some measures to improve the quality of silvopastures as habitats for birds, including encouraging certain tree species and forming particular microhabitats, such as vine tangles and hanging dead leaves.
The flooding caused by Hurricane Florence in North Carolina has drowned millions of chickens and thousands of pigs that were left on farms during the storm. The floodwaters have also caused at least 13 manure storage lagoons to overspill, spreading potentially dangerous bacteria and excess nutrients to the surrounding areas.
A survey of Canadians finds that a high level of dedication to Christianity is negatively correlated with monetary donations to environmental causes, while being a believer without an affiliation to organised religion is positively correlated to such donations. However, being very religious was positively correlated with volunteering for environmental causes, while being strictly secular or nominally religious were negatively correlated with such volunteering.