Showing posts with label food sustainability. Show all posts
Showing posts with label food sustainability. Show all posts

Wednesday, 7 May 2014

Increased Emphasis on Sustainability Prompts Change

 Increased Emphasis on Sustainability Prompts Change
 - Blogs
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We reached a new normal of increased awareness of the true value of natural resources—whatever their physical price. It’s fair to say, green concerns have an impact on the purchasing decisions of almost all consumers from the “casual green"—who purchase private-label green products and place sustainability behind convenience or price or quality—to deep green consumers, who demand every aspect of a product is unquestionably green.

Euromonitor International believes regulatory and consumer demands for sustainable goods and services will continue to intensify pressures on businesses, and, as a result, sustainability must be embedded into every aspect of the supply chain from suppliers through to transport and disposal. Coupled with growing demand and competition for natural resources globally and government demands for sustainability, this makes resource management a priority for all companies whatever their sector.

A lack of awareness of sustainability issues or a lack of engagement brings real risks to businesses. The public perception of a brand or a company as a while can be damaged if the business is exposed as using unsustainable sources of materials or damaging ecosystems or habitats. In today’s increasingly connected world, previous local disputes can swiftly become global.

Therefore, working to incorporate sustainability into all aspects of the business should be a key aim. This might sound costly, but it doesn’t have to be expensive and the best measures can actually save money. Working to improve resource efficiency is perhaps the first step a company should take. Important questions to consider include: As a business, can we save energy? Reduce water consumption" Use fewer raw materials? Encourage suppliers to meet similar sustainability standards? The answer to at least some of these is likely yes.
For a closer look at sustainability and the food industry, download Food Product Design’s Boardroom Journal: “Sustainability’s Impact on the Global Food Supply Chain."

Tuesday, 22 April 2014

SEAFOOD SUSTAINABILITY: PRAWNS - Do you support this?

Every animal has developed unique ways to ensure its survival. For spot prawns, this means starting life as a male before changing into a female, a characteristic called sequential hermaphroditism. The advantages of changing sexes halfway through life is not well understood but obviously works for spot prawns, as well as many other animals including fish, bivalves, and plants.

Ask for:

Prawns caught in the Canadian Pacific by trap. Spot prawns are the largest shrimp species found in Canada's west coast. With a reddish brown shell, this fish is easy to distinguish with its distinctive white spots on its abdominal segments.

Avoid:

Any prawn that are not recommended as SeaChoice yellow or green options.

Cooking & nutrition:

Prawns are known for their naturally sweet and succulent flavor and firm texture. Cooked in only a couple of minutes, this seafood makes for a quick and tasty treat that requires little effort for amazing results. Delicious served simply with butter for dipping or sautéed or barbequed, prawns can be used in any dish from soups and pastas to curries and stir fries. Spot prawns are available fresh from May to July and frozen year-round.

Recipe:

Shrimp, Shitake, Cucumber Salad (PDF) from A Good Catch.

Fishery:

Spot prawns are sustainably harvested in traps that reduce bycatch. As described previously, prawns begin life as males and then change into females. The fishery is managed based on the ratio of males:females and is only open for a few months each year.

More sustainable seafood picks

Wednesday, 29 January 2014

CANADIAN MARKET TRENDS: Oceans of Opportunity

CANADIAN MARKET TRENDS: Oceans of Opportunity

 0December 6, 2013 at 10:52 am by Carol Neshevich

fishWith the Pacific Ocean to the west, the Atlantic to the east, the Arctic Ocean up north and the Great Lakes in between, Canada seems naturally suited to succeed in the seafood business. The industry is certainly important for the Canadian economy: Canada was the world’s fifth-largest fish and seafood exporter in 2011, with exports to more than 130 countries. And in 2012, Canada’s fish and seafood exports brought in $4.1 billion, an increase of $41 million over 2011.

But like any industry, the seafood business in Canada has its own unique challenges. These days, issues such as sustainability, consolidation and aquaculture, among others, are providing the Canadian seafood industry with a number of challenges — as well as enormous opportunities.

Environmental footprint
Sustainability is undoubtedly the number-1 issue in seafood today. “Sustainability is certainly high on everybody’s agenda,” says Henry Demone, president and CEO of Lunenberg, N.S.-based High Liner Foods Inc. “And I think it’s great that it’s high on everybody’s agenda.” As the world population grows, he explains, “seafood is a great way to feed people — if it’s sustainable. Sustainable wild seafood has lower carbon footprint, lower freshwater use, lower feed use …lower in pesticides, lower herbicides, lower antibiotics — if it’s sustainable, it really has a lower environmental footprint than any other protein. So I think it’s really important that the industry has gone in that direction.”

Sustainability has been a growing concern in the industry since the 1990s, but the movement has gained particularly strong momentum in the past two to three years. Interestingly, Demone says this hasn’t really been driven by consumer demand. “I’m not saying there aren’t any consumers out there looking for this, but generally it’s been a retail-driven phenomenon,” he says, noting that typically it’s been NGOs pressuring retailers, and then retailers pressuring the brands and suppliers to comply.

Linda Fox, director of Marketing, Frozen Business Unit for Markham, Ont.-based Sofina Foods Inc., agrees that it’s not largely a consumer-driven initiative. Sofina purchased Janes Family Foods in 2012, and as a producer of frozen packaged fish products the Janes brand has been using only fish that is certified by the MSC (Marine Stewardship Council — the international body working toward implementing sustainable fishing practices around the world) since 2011. But as Fox explains, “We did not implement this change in response to strong consumer demand.” Leger Marketing conducted an online survey of 1,500 Canadians in May 2011 for the Janes brand, and according to Fox, “the survey revealed that only one in 10 Canadians choose their seafood in grocery stores or restaurants based on seafood sustainability. Taste and price were ranked as having the highest influence on the type of seafood selected.” For Janes, however, sustainability has long been a deeply held goal for the brand, regardless of consumer concern for the issue. “We certainly feel it is important that corporations step up where they can,” says Fox.

There have undoubtedly been some financial costs associated with insisting on sustainable practices, but “it’s the cost of doing business these days,” says Sal Battaglia, vice-president of Marketing at Vaughan, Ont.-based wholesaler Seacore Seafood Inc. The sustainability movement has definitely changed the way Seacore operates in the last couple of years. “Before, we weren’t really looking if our resource product was sustainable or not, but now it’s actually one of the most important things,” says Battaglia. “Whenever we’re sourcing product, we’ll always try to see if there’s a sustainable option, and if there is, then we’ll source that product.” Adds Fox, “there is some expense associated with carrying the MSC logo, but it isn’t too onerous and it helps to fund additional awareness and education. The cost of not using certified sustainable seafood is larger in the long run.”

And the good news is that things are beginning to level off in terms of higher costs, as the seafood world has moved closer toward full sustainability. “It’s always particularly difficult during transitions, but I think the worst is over for that right now,” says Demone. “Let’s say, for example, that cod comes from four different countries, one of which is certified sustainable. Well, that country [with the certified cod] is going to charge more for their cod, given equal quality and other attributes. But once you get most of the cod fisheries certified, then it just becomes the going cod price. So I think the industry has gotten far enough along now that we’re paying less of a premium each year to meet that commitment. It was probably harder [financially] a year or two ago.”

Larger players
Another major trend affecting Canada’s seafood industry today is consolidation, as mergers and acquisitions tighten up a previously very fragmented industry. For High Liner in particular, says Demone, the company’s sales went from under $300 million six or seven years ago to somewhere between $1.1 billion and $1.2 billion today, and most of that growth has been due to mergers and acquisitions. “We’ve bought four of our competitors in the last six years,” Demone explains. “I think this is all positive for the industry, because the seafood industry, compared to other food categories, still remains highly fragmented. The fact that we’re one of the larger players at a run rate of just under $1.2 billion…well, we just wouldn’t be one of the larger players in most parts of the food business [with those numbers], to be honest with you, but in the seafood business we are, and that speaks to the fragmentation. So I think having larger players who can make the commitment to sustainability, who can develop the new products, who can provide proper marketing support for new product launches…I think that’s key.”

Indeed, Fox says the acquisition of Janes by Sofina has been positive for the company. “We now have access to a wide range of experienced professionals, the ability to pull together promotions among our own complementary brands, manufacturing facilities across Canada, and new protein products previously not in our repertoire, for example,” she maintains.

Derek Butler, executive director of the St. John’s, Nfld.-based Association of Seafood Producers, thinks all this consolidation is a good start, but feels this is just the tip of the iceberg. “There has been some consolidation in recent years, but more is needed. We are a very fragmented industry, very ‘small scale’ in terms of our competitors. That adds costs. Just to compare on one indicator, Alaska has a crab fishery with four major ports, while we have around 200. They have average landing size of over 100,000 lbs, and we are just over 7,000 lbs,” he explains. “On the processing side, plants are closing, particularly in shrimp, as the quota reduces, or [they] were closed by external factors, and then they opted not to re-open. We need more consolidation, and more economies of scale, to get more work out of the fisheries and higher incomes for all participants.”

Farmed fish
Aquaculture is another high-profile — and often controversial — issue in the seafood industry these days. Opponents of aquaculture criticize the practice for the potential waste, water pollution and spread of disease that can be associated with fish farming. That said, most of the industry players Food in Canada spoke with article agree that aquaculture has a vital role to play, as long as it’s done with best practices in mind. “I think everyone recognizes that aquaculture is an important source of fish protein all over the world, just like we get most other animal protein from farms,” says Butler.

Adds Demone: “I do think aquaculture has a big role to play in helping to feed a hungry planet. It is controversial in certain quarters…but let me also say when you compare aquaculture to land-based protein production, whether it’s the carbon footprint or the feed conversion ratio, aquaculture performs very well.” While Demone doesn’t say it’s perfect, he admits, “just like in the wild fishery, pressure to operate sustainably will bring good change, and I think that will happen in aquaculture as well….Some of the fishing companies may see it as competition, but I think generally, most of the market-facing companies like High Liner would say that aquaculture’s going to supply the growth, so we’ve got to get comfortable with it and we’ve got to do it right.”

There have been a few new farmed species making waves in recent years. “Every once in a while, a new species makes it into the mainstream,” says Demone, “and the two that have done that in the past 10 years in Canada have been tilapia and pangasius, which are both farmed fish, but farmed fish that have a low environmental impact because they’re mainly herbivorous.” Since both of these tend to be a little lower in cost — particularly pangasius — these new introductions have filled a need in Canada’s lower-priced white fish market, explains Demone.

Although the Janes brand currently doesn’t use farmed fish, the company isn’t ruling it out. “When we committed to having all of our products MSC-certified, we made a commitment we intend to keep,” says Fox. “However, it is also clear to us that there are types of farmed fish that some consumers enjoy. Tilapia, which is only farmed, and salmon, of which a significant percentage is farmed, both come to mind.” So while Janes currently sells only MSC-certified, wild-caught whole fillet products, she says, “we recognize there may come a day when we need to take a look at other certification programs like ASC (the Aquaculture Stewardship Council). The number of farmed fish that exist is large and growing, while some wild fish populations are declining. These facts, together with the exponential growth in the number of people on earth, makes it necessary for us to be on the lookout for good, sustainable, healthy ways to source protein. That doesn’t mean walking away from our MSC commitment; it does mean that we may expand our portfolio of options.”

Meanwhile, in the arena of processed and value-added seafood products, the industry continues to make headway with interesting new innovations. “Retailers are looking for new ways to market seafood, while consumers are looking for convenient and user-friendly ways to prepare seafood,” says Jeff Duffin, vice-president of Global Marketing for Bedford, N.S.-based Clearwater Seafoods LP. “For example, Clearwater has recently entered this retail space with new products like Scallops & Sauce and Bacon Wrapped Sea Scallops…By offering great-tasting and convenient options, we’re helping make seafood a part of consumers’ everyday lives.” Fox adds that smaller package sizes of plain frozen fillets seem to be gaining in popularity – “likely the boomer effect of smaller households,” she explains. Fish tacos are also a popular trend that value-added producers would do well to consider, says Fox. “Janes recently launched Fish Bites, which is a small battered piece of whole fillet that works well in a taco or on its own as a finger food for dipping – very family friendly.”
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Thursday, 23 January 2014

FOOD SUSTAINABILITY: Part 5 - Agroecological innovations for sustainable intensification


Food Sustainability: 
Box 3: Agroecological innovations for sustainable intensification
Agroforestry:
Agroforestry incorporates trees or shrubs into cropping systems, offering a range of benefits such as replenishing soil fertility and providing food, fodder, timber and fuelwood — and so helping produce greater value than single crops. [19] The system's potential is most powerfully demonstrated in the Sahel, where agroforestry supported by soil and water conservation has 're-greened' the desert. In Niger, for example, five million hectares have been rehabilitated, benefitting some 2.5 million people. [20]

Agroforestry can also increase yields substantially. In Burkina Faso, for example, planting trees and shrubs on farms across 200,000–300,000 hectares of farmland has boosted food production by some 80,000 tonnes a year. In Cameroon, maize yields have increased by 70 per cent on average, where leguminous trees and shrubs were planted on croplands. [21] Across Africa, using 'fertiliser tree' systems has increase the yields of food crops such as maize while reducing the use of expensive inorganic fertiliser. [22]


Integrated Pest Management (IPM): 
IPM combines targeted use of agrochemicals with growing practices and biological techniques to control pests. Assessments of IPM show that it is possible to improve crop yields while reducing overall pesticide use. An assessment of 62 IPM initiatives in 26 countries revealed a 35 per cent increase in yields of various crops, alongside a 72 per cent decrease in pesticide use. [23] An innovative new IPM system, called 'push-pull technology' has been developed by Kenyan scientists in collaboration with UK researchers to control pests (notably stem-borers and Strigaweed). It attracts pests to nearby plants (pull) while driving them away from the field using a repellent crop grown among the farmers' main crop (push). This system is now widely deployed across Africa — an estimated 30,000 smallholders in Kenya, Uganda and Tanzania use it. In a recent assessment of push-pull IPM, researchers report 3–4-fold increases in maize, 2-fold increases in sorghum, improved soil health and increased farm biodiversity. [24]

Conservation agriculture (CA) and the System of Rice Intensification (SRI):
CA consists of three interlinked principles: minimal soil tilling, maintaining permanent organic soil cover, and cultivating diverse crop species. CA was first developed in Latin America, and is now practiced on around 106 million hectares of arable and permanent crops. SRI, based on principles such as minimal use of water and transplanting of young seedlings, is widely used across Asia, Latin America and Africa, and has resulted in substantial yield increases while improving water-use efficiency. SRI benefits include 20-100 per cent or more increased yields, up to 90 per cent reduction in required seed, and up to 50 per cent water savings. [25] Both of these management systems may contradict conventional advice from agricultural research institutes and the agriculture service, and often clash with what farmers think works best. [26] For example, cultivating SRI rice involves an unconventional irrigation schedule where fields are periodically drained rather than perpetually saturated. However, applying them while involving farmers as co-creators at every stage can help both farmers and research and extension agents to engage in creative and transformative change, rethinking established practices and exploring new ideas. [26]  
Participation is key
It is clear that innovation by itself is not enough to ensure increased food production, resource conservation or social-ecological well-being. Farmers, rural workers, local groups and community leaders need to participate in innovation, rather than being treated as passive recipients of new technologies. Participatory models work — a recent analysis of 40 cases of sustainable intensification of agriculture in Africa shows the ways in which farmers, public and private-sector partners have developed, adapted and disseminated agroecological systems that have increased yields while delivering environmental and social benefits. [15] All the cases highlight the importance of farmer engagement, peer-to-peer learning, and of developing and using local institutions.


Professor Tim Benton on building links between researchers in the global north and south
There is no single technical or managerial fix to the interlinked problems of global hunger, poverty and environmental degradation. The role of S&T will be one of developing a diverse menu of options which farmers can use, share and tailor, providing a range of social, economic and ecological benefits over and above increased productivity.  
Zareen Pervez Bharucha is post-doctoral research officer for the Ecocultures consortium at the School of Biological Sciences, University of Essex, United Kingdom. She is also editorial assistant for the International Journal of Agricultural Sustainability. She can be reached at zpbhar@essex.ac.uk

The author thanks professor Jules Pretty for comments on an earlier version of this article.
Definitions
Agrifood systemsThe network of agricultural and food systems. Itincludes the distribution and governance ofresources such as land, seeds, fertilisers, pesticides and credit, and the mechanisms by which food products are processed, sold and transported. 
AgroecologyThe science and practice of managing agricultural ecosystems as a whole, rather than focusing solely on their individual elements such as plants and soil.
AgronomyThe science of plant-based agriculture. It includestopics such as plant genetics, plant physiology and soil science.
BiotechnologyThe science and practice of using living cells or organisms to produce new and useful products such as foods, fuels or medicines.
Bt cottonOne of the best known and most widely used forms of transgenic crop (see below)This varietyof cotton has been developed using genetic material from the bacterium Bacillusthuringiensisallowing the plant to produce an insecticide that harms certain cotton pests.
Carbon sequestrationThe conversion and storage of atmospheric carbon into non-atmospheric 'sinks' such as biological matter — plants and animals take in and store, or sequester, carbon as they grow. Sequestration of carbon in biological matter is also called biosequestration
DrylandsRegions of the world where lack of water is the chief constraint on plant growth. 
Inorganic orsynthetic inputsFarming resources that are produced by inanimate processes, for example by industrial methods, as opposed to animate or natural processes such as decay and decomposition. Such resources, which include chemical fertilisers and pesticides, are used to raise yields by increasing soil nutrients and controlling pests. 
Input-intensive modelAgricultural production that uses large amounts of inputs such as seeds, energy, fertilisers and pesticides to boost crop yields. 
Integrated nutrient management (INM)An approach to sustainably ensuring optimal nutrition for plant growth by providing a balanced supply of synthetic and naturally produced fertiliser, and recycling nutrients where possible. 
LeguminousTypes of plant that can convert atmospheric nitrogen into a form that they and other plants can absorb through their roots and use for growth. This process, called nitrogen-fixing,occurs in special nodules on the plants' roots. These contain bacteria that can convert gaseous nitrogen in air pockets between soil particles into ammonia, which plants then use to produce proteins and grow. This ability effectively meansthat leguminous species produce nitrogen'fertiliser' for the field in which they are grown.
MalnutritionThe condition of having inadequate or improper nutrition over time. Malnutrition is a broad term that can encompass undernourishment (seebelow)overnutrition, which is the excessive consumption of caloriesand micronutrient malnutrition, which is the inadequate consumption of nutrients such as vitamins and minerals that are required in small amounts.
Molecular geneticsThe study of genes at a molecular level to understand how they work and how to manipulate them to produce desirable characteristics in living organisms.
Participatory orinclusive innovationsInnovations developed through mechanisms that give all stakeholders, especially end users, a say during their development. Participatory innovations in agriculture involve farmers in a project's design, development and dissemination stages, in the hope that their involvement will result in innovations that are targeted at farmers'real needs and are widely adopted. 
Rainfed farmingCrop cultivation that primarily depends on precipitation rather than irrigation. 
Seed systemsA network of factors that influence the quality, diversity and availability of seeds in a given region. These factors are diverse and could include the availability of credit so that farmers can buy seeds, and the quality of roads, which affects how seeds can be transported.
StaplesCrops that dominate the diet of a particular population in terms of quantity and contribution to total dietary energy. Globally, most dietary energy is now provided by just three grain crops: rice, wheat and maize. 
Transgenic cropsCrops that have been engineered to contain genes from different species so they express desirabletraits. Transgenic crops may contain genes from completely unrelated organisms that have been inserted by genetic manipulation in a laboratory —Bt cotton (see above), for example, contains genes from a species of bacteria. This contrasts withcrops produced by hybridisationthe process of combining different varieties. Hybrid crops are produced by sexual reproduction between two closely related species or varieties.
UndernourishmentThe inadequate intake of protein and energy in the diet, resulting in poor health including reduced mental and physical capacity and lowered resistance to disease. Often used synonymously with 'hunger'.

References

[1] FAO. The State of the World’s Land and Water Resources For Food and Agriculture: managing systems at risk. (FAO, Rome and Earthscan, London.  2011)
[2] von Grebmer, K et al. Global Hunger Index: the challenge of hunger. Ensuring sustainable food security under land, water and energy stress.(IFPRI, Concern Worldwide and Welthungerhilfe 2012)
[3] Chaudhury, S. How to feed a billion. And why it pays.  (Tehelka, 2013)
[4] UNEP Global Drylands: A United Nations system-wide response. (UNEP EMG Secretariat, Geneva 2011)
[5] Millennium Ecosystem Assessment. Ecosystems and Human Wellbeing – Desertification Synthesis (World Resources Institute, Washington D.C. 2005)
[6] FAO Global NPP Loss in the Degrading Areas (1981-2003). (FAO GeoNetwork 2008)
[7] Smit A.L. et al. Phosphorus in agriculture: global resources,  trends and developments. (Plant Research International B.V., Wageningen, 2009)
[8] Phil Trans. Roy. Soc. doi: 10.1098/rstb.2010.0123 (2010)
[9] Agarwal A. and Narain S. Dying Wisdom: The Rise, Fall and Potential of India’s Traditional Water Harvesting Systems (Centre for Science and Environment, New Delhi, India 1997)
[10] Pingali P. and Raney T. From the Green Revolution to the Gene Revolution: How will the Poor Fare? (ESA, Working Paper No. 05-09. November 2005)
[11] Thompson J., et al. Agri-Food System Dynamics: pathways to sustainability in an era of uncertainty. (STEPS Centre, Working Paper 4, Brighton, UK. 2011)
[12] Pingali P.L. Green Revolution: Impacts, limits and the path ahead.Proceedings of the National Academy of Science, USA. 109: 12302 (2012).
[13] Agron Sustain Dev doi: 10.1007/s13593-013-0138-9 (2013)
[14] Glover D. Undying Promise: Agricultural Biotechnology’s Pro-poor Narrative, Ten Years on. (Working Paper 15, STEPS Centre, Brighton UK 2009)
[15]  Int J Agr Sustain doi: 10.3763/ijas.2010.0583 (2011)
[16] Int J Agr Sustain doi: 10.3763/ijas.2010.0545. (2011)
[17] Environ Sci Tech doi: 10.1021/es051670d (2006)
[18] IAASTD. Agriculture at a Crossroads. (Island Press: Washington D.C. 2009)
[19] Food Security  doi: 10.1007/s12571-010-0070-7 (2010)
[20] UNEP. Africa: Atlas of our Changing Environment (UNEP 2008)
[21] Int J Agr Sustain doi: 10.3763/ijas.2010.0553 (2011)
[22] Int J Agr Sustain doi: 10.3763/ijas.2010.0554 (2011)
[23] Pretty J. and Waibel H. Paying the price: the full cost of pesticides. In Pretty J. The Pesticide Detox: Towards a More Sustainable Agriculture.Earthscan: London 2005.
[24]  Int J Agr Sustain doi: 10.3763/ijas.2010.0558  (2011) 
[25] System of Rice Intensification. SRI Concepts and Methods Applied to Other Crops.  (SRI-Rice Online, 2012)
[26]  Int J Agr Sustain doi: 10.3763/ijas.2010.0549 (2011)    
[27] Environ Sci Tech doi: 10.1021/es062097g (2007)


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Wednesday, 22 January 2014

FOOD SUSTAINABILITY: Part 4 - Case study of Quncho cereal in Ethiopia

FOOD SUSTAINABILITY: Box 2: Case study of Quncho cereal in Ethiopia 
Tef (Eragrostis tef) is the main cereal grown in Ethiopia and vital for food security there. It is resilient to drought, waterlogging, diseases and pests. Research on improving tef varieties began in the 1950s, but had limited success due to the lack of funding and research. However, a new hybrid tef variety called Quncho was released by the Debre Zeit Agricultural Research Centre in 2006 and is proving popular with farmers.
Farmers participated in Quncho's development, helping select and breed the variety. Their involvement meant breeders developed a variety which closely matched farmers' and consumers' preferences. Quncho was also disseminated using an innovative approach. Instead of relying on conventional 'technology transfer', farmers were introduced to the new variety and its cultivation techniques through farmer-led testing, coordinated between research centres, administrative bodies, farmers and farmers groups, seed-growers associations, private seed growers and agro-processors. Farmers who adopted the variety were supported with seed loans, training, regular follow-up and assistance from researchers and staff from local development agencies.

The number of farmers receiving training on tef production increased from 360 to 6,250 from 2006 to 2009. Farmers have saved and distributed seeds amongst themselves in a well-developed informal seed system — and the initiative has spread rapidly. 

























Development and dissemination of the orphan crop variety Quncho shows how S&T can deliver new varieties using participatory, inclusive and context-appropriate innovations (Box 2).

Professor Tim Benton discusses issues around how to shape sustainable agriculture
Breeding new crop varieties is only one of many options for resource-conserving and yield-enhancing agriculture. While the S&T of variety development is amongst the most visible innovations in agricultural science, a number of other innovations in crop management are promoting sustainable intensification by conserving resources, building environmental quality and increasing yields. 

Crop management systems
Agroecology is developing new systems of crop management that increase yields while conserving resources. It is particularly effective at increasing food production while improving environmental and social outcomes. Agroecological methods rely on management rules and packages of technologies carefully calibrated to suit local conditions and farmers' preferences. Methods include systems such as agroforestry, conservation agriculture, the system of rice intensification, integrated pest management, the inclusion of aquaculture and small livestock into farming systems, water harvesting, soil conservation and integrated nutrient management. (Box 3).

A 2006 analysis of agroecological methods based on 286 projects in 57 countries in the developing world, showed that projects increased crop yields by 64 per cent on average while improving water efficiency and carbon sequestration and reducing pesticide use. [17] In 2009, agroecological methods were endorsed by the International Assessment of Agricultural Knowledge, Science and Technology for Development, a process consulting some 900 participants over three years. [18]

These new management systems, and new crop varieties, promise to enable the world to produce more food while conserving resources and protecting the environment. But more needs to be done to further develop these approaches and examine their potential. There is controversy, for example, about the yield-increases reported by proponents of the System of Rice Intensification (see Box 3) and the methods used to evaluate the outcomes of agroecological practice. [27]



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Tuesday, 21 January 2014

FOOD SUSTAINABILITY: Part 3 - The GM Controversy

FOOD SUSTAINABILITY: Part 3 -  The GM Controversy



        Box 1. GM controversy
        There is controversy over whether GM can increase crop yields while conserving resources. GM crops in commercial cultivation mainly express two traits  herbicide tolerance and pest resistance. These traits promise higher yields with lower pesticide use. However, their impacts have been variable and depend on a range of external factors. For example, India, China and South Africa found that socioeconomic, agronomic and institutional factors have had a big impact on farmers' experiences withBt cotton technology. [14] In Africa, an analysis of 11 improved varieties showed that success depended not only on new technologies, but also on partnerships between researchers and local farmers at every stage of the innovation process. [15
            However, it is now clear that this early input-intensive model carries unacceptable long-term environmental impacts, for example unsustainable demands on aquifers for irrigation and damage to aquatic ecosystems. These input-intensive practices were catalyzed, in part, by inappropriate incentives and subsidies — highlighting the importance of governance for new technologies. Where these incentives were removed, agricultural practice changed accordingly. For example, insecticide use fell after Indonesia dropped pesticide subsidies in the 1990s. [12]

            There were social concerns, too. Farmers with plenty of land, irrigation and credit benefited the most, while resource-constrained farmers, smallholders, or those farming marginal land benefit ted largely indirectly — as a result of lower food costs and an increase in farm employment in favorable areas. There were also unintended nutritional outcomes of the Green Revolution. For example, intensive cultivation of high-yielding staples led to less dietary diversity and may have affected the availability and use of nutrient-dense 'wild' foods. [12] 
        New developments in agricultural S&T
        Since the 1990s, a second 'wave' of technology development has sought new crop varieties through biotechnology, with controversy focusing on genetically modified (GM) crops (Box 1). Some say GM crops are now "being taken up faster than any other agricultural technology since the plough 8,000 years ago, and are presently being used by 16 million farmers". [13]

        S&T advances have been based on molecular genetics, specifically recombinant DNA technology. This lets scientists combine genetic material from multiple sources (e.g. from two different species), creating combinations not otherwise found in nature. The first GM crop to be released for commercial cultivation was 'Roundup Ready' soybean in 1996, which resists the herbicide glyphosate, allowing farmers to apply the herbicide without harming soy crops. Since then, recombinant DNA has been used to develop 'golden rice' (a variety fortified with the vitamin-A precursor beta-carotene) and crops resistant to herbicides, insects and viruses.

        Unlike the Green Revolution, which was funded and supported by public-sector bodies, the 'gene revolution' is primarily driven by a private and global research system where new technologies find their way to developing countries through the market. [10] There is tremendous private sector funding support for transgenic crops. As of 2005, for example, the top ten multinational bioscience corporations collectively spent nearly US$3 billion per year on agricultural R&D — ten times more than that spent annually by the 15 CGIAR research centres, which together constitute the largest international public sector consortium supplier of agricultural technologies. [10]
        Better varieties for smallholders
        Smallholders deliver most of the food produced in developing nations, and their need for more productive, pest-tolerant and nutritious varieties is increasingly recognised. Several initiatives are seeking to develop and disseminate improved varieties of indigenous or traditional crops that have so far been neglected by privately funded biotechnology research.

        For example, the African Orphan Crop Consortium (AOCC) aims to map and analyse the genomes of 100 so-called 'orphan' crops, selected by African scientists, which have so far been neglected as they were not economically important on the global market. The AOCC plans to make its data and findings freely accessible to researchers and breeders in Africa and elsewhere. 

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