News tagged with food supply
Groundwater depletion in semiarid regions of Texas and California threatens US food security
The nation's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study by researchers at The University of Texas at Austin and elsewhere.
May 28, 2012 |
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Bees at risk from chemicals increase, scientists say
Pesticide use rose by 6.5% between 2005 and 2010, increasing the risk to bee populations, according to new research from the University of Reading launched today by Friends of the Earth.
May 24, 2012 |
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In cod we trust: DNA test combats fisheries fraud
Scientists on Tuesday said they had devised a DNA test to pinpoint the geographical origins of commercial seafish, in a breakthrough against illegal trawling that threatens fish stocks worldwide.
May 22, 2012 |
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How to avoid a global food crisis
The world faces a major challenge in the coming decades as global food demand is poised for unprecedented growth.
May 16, 2012 |
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Thousands of birds found dead on Chile beaches
About 2,000 birds were found dead on beaches in central Chile, a natural history museum director said Friday, accusing fishermen of snagging them in their nets and letting them drown.
May 12, 2012 |
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Agroforestry is not rocket science but it might save DPR Korea
There is more going on in DPR Korea than rocket science: local people in collaboration with natural resources scientists are taking control of their food supply through agroforestry. This is according to a report published ...
Apr 30, 2012 |
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The future of plant science -- a technology perspective
Plant science is key to addressing the major challenges facing humanity in the 21st Century, according to Carnegie's David Ehrhardt and Wolf Frommer. In a Perspective published in The Plant Cell, the two researchers argue ...
Mar 02, 2012 |
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Farmers team up with food banks to feed the hungry
A new collaboration among farmers and New York state's food banks hopes to increase the amount of food donated directly from those who produce our food to those who need it most.
Feb 17, 2012 |
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Climate risk of toxic shock
The effects of climate change could expose Australians to greater risks from toxic contamination, a leading scientist has warned.
Feb 06, 2012 |
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Much irrigation water comes from non-sustainable sources
Some of the water used worldwide for irrigation comes from renewable sources such as local precipitation, rivers, lakes, and renewable groundwater. But some comes from nonrenewable groundwater sources.
Jan 31, 2012 |
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Australians make Antarctic history
Two Australian adventurers have made Antarctic history by becoming the first team to travel unaided to the South Pole and back, surviving three months of "extreme hardship", they said on Friday.
Space & Earth / Earth Sciences
Jan 27, 2012 |
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Researchers study potential effects of geoengineering on global food supply
Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing the Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic ...
Jan 22, 2012 |
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Hedgerows can be managed better for wildlife
Simple changes to hedgerow management could significantly improve winter habitats and food supplies for wildlife, according to new research by the Centre for Ecology & Hydrology.
Dec 29, 2011 |
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Bugs may be resistant to genetically modified corn
(AP) -- One of the nation's most widely planted crops - a genetically engineered corn plant that makes its own insecticide - may be losing its effectiveness because a major pest appears to be developing resistance ...
Dec 29, 2011 |
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Report calls for energy-smart food
(PhysOrg.com) -- A Massey University energy expert says the global agriculture industry, including that of New Zealand, must reduce its dependence on fossil fuels to secure food supply in the future.
Dec 12, 2011 |
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Food security
Food security refers to the availability of food and one's access to it. A household is considered food secure when its occupants do not live in hunger or fear of starvation. According to the World Resources Institute, global per capita food production has been increasing substantially for the past several decades. In 2006, MSNBC reported that globally, the number of people who are overweight has surpassed the number who are undernourished - the world had more than one billion people who were overweight, and an estimated 800 million who were undernourished. According to a 2004 article from the BBC, China, the world's most populous country, is suffering from an obesity epidemic.
Worldwide around 852 million people are chronically hungry due to extreme poverty, while up to 2 billion people lack food security intermittently due to varying degrees of poverty (source: FAO, 2003). As of late 2007, increased farming for use in biofuels, world oil prices at more than $100 a barrel, global population growth, climate change, loss of agricultural land to residential and industrial development, and growing consumer demand in China and India have pushed up the price of grain. Food riots have recently taken place in many countries across the world.
It is becoming increasingly difficult to maintain food security in a world beset by a confluence of "peak" phenomena, namely peak oil, peak water, peak grain and peak fish. More than half of the planet's population, numbering approximately 3.3 billion people, live in urban areas as of November 2007. Any disruption to farm supplies may precipitate a uniquely urban food crisis in a relatively short time. The ongoing global credit crisis has affected farm credits, despite a boom in commodity prices. Food security is a complex topic, standing at the intersection of many disciplines.
A new peer-reviewed journal of Food Security: The Science, Sociology and Economics of Food Production and Access to Food is to be published from 2009. In developing countries, often 70% or more of the population lives in rural areas. In that context, agricultural development among smallholder farmers and landless people provides a livelihood for people allowing them the opportunity to stay in their communities. In many areas of the world, land ownership is not available, thus, people who want or need to farm to make a living have little incentive to improve the land.
In the US, there are approximately 2,000,000 farmers, less than 1% of the population. A direct relationship exists between food consumption levels and poverty. Families with the financial resources to escape extreme poverty rarely suffer from chronic hunger; while poor families not only suffer the most from chronic hunger, but are also the segment of the population most at risk during food shortages and famines.
Two commonly used definitions of food security come from the UN's Food and Agriculture Organization (FAO) and the United States Department of Agriculture (USDA):
The stages of food insecurity range from food secure situations to full-scale famine. "Famine and hunger are both rooted in food insecurity. Food insecurity can be categorized as either chronic or transitory. Chronic food insecurity translates into a high degree of vulnerability to famine and hunger; ensuring food security presupposes elimination of that vulnerability. [Chronic] hunger is not famine. It is similar to undernourishment and is related to poverty, existing mainly in poor countries."
For more information about Food security, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.