Bob_Positive_Activism. CONSTRAINTS ON THE EXPANSION OF THE GLOBAL FOOD SUPPLY. Click here table of contents We examine whether and how global food production may be increased to provide for a world population expected to double by about 2050. Increasing current food production more than proportional to population growth is required so as to provide most humans with an adequate diet. We examine the possible expansion of food supplies to the year 2050, the inventory of presently utilized and potentially available arable land, rates of land degradation, and the limitations of water and biological resources. Serious degradation and loss of the world's arable land is taking place and expansion of irrigation, vital for food production, is becoming more costly and difficult. World population is projected to continue increasing well into the next century.
Numbers and Growth The world's population grew slowly over much of the historic past; it was not until after 1900 that growth accelerated (1). Figure 1 shows three such projections for world population (5). Land Resources. India - Agriculture. India Table of Contents AGRICULTURE HAS ALWAYS BEEN INDIA'S most important economic sector. In the mid-1990s, it provides approximately one-third of the gross domestic product (GDP--see Glossary) and employs roughly two-thirds of the population. Since independence in 1947, the share of agriculture in the GDP has declined in comparison to the growth of the industrial and services sectors.
However, agriculture still provides the bulk of wage goods required by the nonagricultural sector as well as numerous raw materials for industry. Moreover, the direct share of agricultural and allied sectors in total exports is around 18 percent. When the indirect share of agricultural products in total exports, such as cotton textiles and jute goods, is taken into account, the percentage is much higher.
Food-grain production increased from 50.8 million tons in fiscal year (FY--see Glossary) 1950 to 176.3 million tons in FY 1990. Land Use Himalayas Indo-Gangetic Plain Peninsular India Land Tenure Land Reform. InfoChange India News & Features development news India - Climate change and food security. Rice production in India could decrease by almost a tonne/hectare if the temperature goes up 20C, while each 10C rise in mean temperature could cause wheat yield losses of 7 million tonnes per year.
A recent national conference on food security and agriculture deliberated strategies to protect agriculture, food and nutrition security in the time of climate change. Suman Sahai reports A two-day national conference was organised by Gene Campaign and ActionAid on ‘Ensuring Food Security in a Changing Climate’ to generate greater awareness about this crucial issue and to develop recommendations for future action. The conference, held on April 23 and 24, in New Delhi, brought together over 200 participants from 22 states.
According to climate estimates, developing countries in the tropics are more susceptible to climate change damage than temperate countries. Agriculture in the productive areas of Africa and South Asia will be amongst the worst-affected. Recommendations for action. One-third of the world's food goes to waste, says FAO | Claire Provost | Global development. One-third of the world's food produced for human consumption is lost or wasted each year, according to a study (pdf) released on Wednesday by the UN Food and Agriculture Organisation (FAO). Roughly 1.3bn tonnes of food is either lost or wasted globally due to inefficiencies throughout the food supply chain, says the report, based on research by the Swedish Institute for Food and Biotechnology (Sik). Amid rising global food prices, the study says that reducing food losses in developing countries could have an "immediate and significant" impact on livelihoods and food security in some of the world's poorest countries.
According to the report, industrialised and developing countries waste or lose roughly the same amount of food each year – 670m and 630m tonnes respectively. The average European or North American consumer wastes 95kg-115kg of food a year, above all fruits and vegetables. UN food agency stunner: World loses one-third of total global food production. By Climate Guest Contributor on May 23, 2011 at 12:34 pm "UN food agency stunner: World loses one-third of total global food production" Bloom: “2% of all US energy goes to food we’re throwing away.” Figure 2 shows that the per capita food loss in Europe and North-America is 280-300 kg/year. In Sub- Saharan Africa and South/Southeast Asia it is 120-170 kg/year. The total per capita production of edible parts of food for human consumption is, in Europe and North-America, about 900 kg/year and, in sub-Saharan Africa and South/Southeast Asia, 460 kg/year.
By Tyce Herrman, the first ever Climate Progress intern, in his first post The agriculture sector is one the largest emitters of greenhouse gases, approximately 10-12% of the global total according to the 2007 IPCC Fourth Assessment Report on Climate Change. Climate Progress’s ongoing series on food insecurity explores both how climate change is affecting agriculture and how agriculture is contributing to climate change.
One Third of Food Produced WorldWide for Human Consumption is Lost or Wasted- 1.3 billion tons per year. According to staggering new statistics from the United Nations Food and Agriculture Organization (FAO), roughly one-third of the food produced worldwide for human consumption is lost or wasted, amounting to some 1.3 billion tons per year. In the developing world, over 40 percent of food losses occur after harvest-while being stored or transported, and during processing and packing. In industrialized countries, more than 40 percent of losses occur as a result of retailers and consumers discarding unwanted but often perfectly edible food.
At a time when the land, water, and energy resources necessary to feed a global population of 6.9 billion are increasingly limited-and when at least 1 billion people remain chronically hungry-food losses mean a waste of those resources and a failure of our food system to meet the needs of the poor. "It would make good sense to invest in making better use of what is already produced. " Getting surpluses to those who need it. Peak Stupidity. Wasting Food = Wasting Water. Inside a dumpster. Photo credit: sporkist The world is teetering on the edge of a food crisis due to the growing population, soaring food prices, and water scarcity, yet a shocking one third of the food produced around the world goes to waste. A new report by the Food and Agriculture Organization of the United Nations (FAO) found that 1.3 billion tons of food are lost each year, which means that the resources used to produce that food are also lost. “As much as half of the water used to grow food globally may be lost or wasted,” said Dr.
Charlotte de Fraiture, a researcher at the International Water Management Institute. Curbing this waste is one solution to the global water crisis since the water used to produce food that is wasted could otherwise be used for drinking water or industry, to irrigate different crops or to replenish aquifers. Curtailing food waste would reduce the water needed for agriculture, which is responsible for the consumption of 70% of U.S. freshwater resources. A War Against Food Waste. Getty ImagesA bin at a restaurant in San Francisco, where officials have made some strides in encouraging composting.
A food industry alliance is planning a three-year initiative to reduce the tremendous amount of food that Americans still throw in the garbage even as they grow somewhat more conscientious about recycling paper and yard trimmings. The effort, announced by the Grocery Manufacturers Association, an alliance of food, beverage and packaging makers, aims both to reduce the amount of food sent to landfills and to increase donations to food banks for the poor. The effort is being carried out and financed in concert with the Food Marketing Institute. A substantial portion of food is thrown away while still fully edible because of cosmetic blemishes or overstocking.
The manufacturers association acknowledges that changing consumer habits will be a challenge. One Country’s Table Scraps, Another Country’s Meal. Elimination of food waste could lift 1bn out of hunger, say campaigners | Environment. Eliminating the millions of tonnes of food thrown away annually in the US and UK could lift more than a billion people out of hunger worldwide, experts claim. Government officials, food experts and representatives of the retail trade brought together by the Food Ethics Council argue that excessive consumption of food in rich countries inflates food prices in the developing world.
Buying food, which is then often wasted, reduces overall supply and pushes up the price of food, making grain less affordable for poor and undernourished people in other parts of the world. Food waste also costs UK consumers £10.2bn a year and when production, transportation and storage are factored in, it is responsible for 5% of the UK's greenhouse gas emissions. Food waste costs every household in the UK between £250 and £400 a year, figures that are likely to be updated this autumn when the government's waste agency WRAP publishes new statistics. . • Remove bad apples! Half of US food goes to waste.
As the US celebrates Thanksgiving, a new study reveals that almost half the food in the country goes to waste - a statistic that should alarm an industry that is struggling to achieve greater efficiency in order to salvage profits. The new study, from the University of Arizona (UA) in Tucson, indicates that a shocking forty to fifty per cent of all food ready for harvest never gets eaten. Timothy Jones, an anthropologist at the UA Bureau of Applied Research in Anthropology, has spent the last 10 years measuring food loss, including the last eight under a grant from the US department of agriculture (USDA). Jones started examining practices in farms and orchards, before going onto food production, retail, consumption and waste disposal. What he found was that not only is edible food discarded that could feed people who need it, but the rate of loss, even partially corrected, could save US consumers and manufacturers tens of billions of dollars each year.
What is soil degradation. Soil degradation is when soil deteriorates because of human activity and loses its quality and productivity. It happens when soil loses its nutrients, or its organic matter. It also happens when the soil structure breaks down, or if the soil becomes toxic from pollution. The primary cause of soil degradation is erosion, but compaction, salinization, and depletion by nutrient demanding crops may also cause degradation. Soil degradation is which the movement of soil particles from one place to another by wind or water, is considered to be a major environmental problem. Erosion has been going on through most of earth's history and has produced river valleys and shaped hills and mountains.
This has resulted in a loss of productive soil from crop and grazing land, as well as layers of infertile soils being deposited on formerly fertile crop lands; the formation of gullies; siltation of lakes and streams; and land slips. Soil degradation. Soil degradation. Soil degradation is the decline in soil quality caused by its improper use, usually for agricultural, pastural, industrial or urban purposes. Soil degradation is a serious global environmental problem and may be exacerbated by climate change. It encompasses physical, chemical and biological deterioration. Examples of soil degradation cited by Charman and Murphy (2005) are loss of organic matter, decline in soil fertility, decline in structural condition, erosion, adverse changes in salinity, acidity or alkalinity, and the effects of toxic chemicals, pollutants or excessive flooding. Soils host the majority of the world's biodiversity and healthy soils are essential to securing food and fibre production and providing an adequate water supply over the long term.
Soils are one of NSW's fundamental natural resources. Improve soil conditionincrease the area of land managed within its capability. Was this page helpful? Thank you for your feedback. Would you like to tell us more? The lowdown on topsoil: It's disappearing. Photo: Andy Rogers/Seattle Post-Intelligencer John Aeschliman shows a spot where rain has washed soil from a neighboring farmer's property onto the road. Aeschliman says his method of farming, in which plants are seeded directly into the remains of the previous crop without tilling, gives stability to the soil, enabling it to retain water and preserve the organic matter within it. less John Aeschliman shows a spot where rain has washed soil from a neighboring farmer's property onto the road.
Aeschliman says his method of farming, in which plants are seeded directly into the remains of the ... more The lowdown on topsoil: It's disappearing The planet is getting skinned. While many worry about the potential consequences of atmospheric warming, a few experts are trying to call attention to another global crisis quietly taking place under our feet. Call it the thin brown line. "We're losing more and more of it every day," said David Montgomery, a geologist at the University of Washington.
Soil erosion and crop productivity: topsoil thickness | Integrated Crop Management. The effect of soil erosion can be partitioned into costs to the actual site where erosion takes place and costs off site where sediment contributes to water quality problems. The on-site costs can include loss in production potential due to deterioration in soil physical and chemical properties such as infiltration rate, water holding capacity, loss of nutrients needed for crop production, and loss of soil carbon. This article focuses on the effect of soil erosion on productivity, particularly on yield. The effect of soil loss on production varies, depending upon the type and depth of the topsoil.
Some seriously eroded soils are not useable for crop production. Many studies have been conducted on the effect of depth of topsoil on corn yields in the Corn Belt states. Figure 1. As the topsoil erodes, infiltration rate and water availability become limited. Figure 2. The thickness of A horizon had an effect on yield up to a certain thickness (Figure 2). Conclusions. Civilization and Topsoil: Erosion Around the World. Culture Published on September 29th, 2010 | by Earth Policy Institute By Lester R. Brown The thin layer of topsoil that covers the planet’s land surface is the foundation of civilization.
This soil, typically 6 inches or so deep, was formed over long stretches of geological time as new soil formation exceeded the natural rate of erosion. But sometime within the last century, as human and livestock populations expanded, soil erosion began to exceed new soil formation over large areas. This is not new. In a section of his report entitled “The Hundred Dead Cities,” he described a site in northern Syria, near Aleppo, where ancient buildings were still standing in stark isolated relief, but they were on bare rock. Global Topsoil Erosion Wind and water erosion take a toll. Ethiopia, a mountainous country with highly erodible soils, is losing close to 2 billion tons of topsoil a year, washed away by rain. Soil erosion from the deterioration of grasslands is widespread.
Eroded topsoil in Ecuador. Saving Our Precious Topsoil by Shawn Dell Joyce on Creators. Save The Environment: How What You Eat Changes The World. Urban Sprawl: the Big Picture. Family Farms, why family farms important - The Issues. Future Food Qld. Warning about farmland lost to development. U.S. population growth is a key factor in paving the world’s breadbasket. Bye Bye, Virginia Farmland - Hello, McDonalds? Sprawl momentum builds in Central Saanich | Focus Online. What to Do About Rural Sprawl? Loss and Fragmentation of Farmland. AGRICULTURE AND ORGANIC FARMING IN CHINA. Rural Legacy Program - Land Acquisition and Planning - Maryland Department of Natural Resources. Fragmenting rural land. Urban Sprawl @ nationalgeographic.com. What is Urban Sprawl? TEACH: Urban Sprawl in the Great Lakes Region.
Greenbelt Ontario - Urban Sprawl. A comprehensive look at sprawl in America. Urban sprawl - in pictures | World news. Loss of Agricultural Capacity Due to Urban Sprawl. Prince of Wales says urban sprawl is the 'greatest challenge' facing planners. Britain From Above - Stories - Building Britain - Urban Sprawl. Dead Malls dot Com: Feature: Dixie Square Mall: Harvey, IL. Ghost mall: The world's largest (and loneliest) shopping centre. The Ghosts of Shopping Past: Abandoned malls and big-box stores. Ghosts of Shopping Past. Abandoned Rolling Acres Mall, Rolling Acres/Akron, Ohio Footage 2009. Abandoned mall in Chicago. Dawn Of The Dead Malls. Abandoned Malls, Suburban Blight.