Global food problems, some factsGlobal food problems, some facts

Adverse effects of modern agriculture – Adverse effects of modern agriculture – soil, water-logging,salinity,contaminationsoil, water-logging,salinity,contamination

Problems with fertilizersProblems with fertilizers Problems with pesticidesProblems with pesticides Organic agricultureOrganic agriculture Food security Food security Strategies to meet future demandStrategies to meet future demand

Food ResourcesFood Resources Where does the world’s food come from?Where does the world’s food come from?

Our food comes almost entirely from agriculture, animal Our food comes almost entirely from agriculture, animal husbandry and fishinghusbandry and fishing

i.e.,i.e., - from crop lands – 76% - mostly food grains - from crop lands – 76% - mostly food grains

- from range lands – 17% - meat from grazing livestock- from range lands – 17% - meat from grazing livestock

- from fisheries – 7% - marine and fresh water- from fisheries – 7% - marine and fresh water

Agril. Production -18% increase over 30 yearsAgril. Production -18% increase over 30 years 2. 5 times more grain/ha in 1990 over 1930 (1.15t)2. 5 times more grain/ha in 1990 over 1930 (1.15t) World food summit 1996 –FAO 60% from irrigationWorld food summit 1996 –FAO 60% from irrigation ICID –should be dobled in 25 yearsICID –should be dobled in 25 years

more crop per dropmore crop per drop

The FAO (Food & Agricultural Organization of UN) defines The FAO (Food & Agricultural Organization of UN) defines sustainable agriculturesustainable agriculture as the one which as the one which conserves land, water and conserves land, water and plant and animal genetic resources, does not degrade the plant and animal genetic resources, does not degrade the environment and is economically viable and socially acceptable.environment and is economically viable and socially acceptable.   

Modern patterns of agriculture that we following are unsustainable Modern patterns of agriculture that we following are unsustainable mainly becausemainly because

• Monoculture –pests devastate, lossof diversityMonoculture –pests devastate, lossof diversity• On the other hand, if the farmer On the other hand, if the farmer uses traditional varietiesuses traditional varieties and grows and grows

several several (9)(9) different crops, the chance of complete failure is lowered different crops, the chance of complete failure is lowered considerablyconsiderably

• excessive use of fertilizers and pesticidesexcessive use of fertilizers and pesticides• Many studies have shown that one can use alternatives to inorganic Many studies have shown that one can use alternatives to inorganic

fertilizers and pesticides. This is known as fertilizers and pesticides. This is known as Integrated Crop Integrated Crop ManagementManagement

• Use of Genetically modified seed variety, without minding the Use of Genetically modified seed variety, without minding the conducive environment for such experimentation, will seriously affect conducive environment for such experimentation, will seriously affect the land eco system.the land eco system.

World Food Problems and Environmental ConcernsWorld Food Problems and Environmental Concerns

Population growthPopulation growthFood production in 64 of the 105 developing countries is lagging behind Food production in 64 of the 105 developing countries is lagging behind their population growth levels. their population growth levels.

Modern farming practicesModern farming practicesIndia is one of the countries that have been able to produce enough food India is one of the countries that have been able to produce enough food by cultivating a large proportion of its arable land through irrigation. by cultivating a large proportion of its arable land through irrigation.

The The Green RevolutionGreen Revolution of the 60’s reduced starvation in the of the 60’s reduced starvation in the country. However many of the technologies we have used to country. However many of the technologies we have used to achieve this are now being questioned because of following achieve this are now being questioned because of following reasons:reasons:

Our fertile soils are being exploited faster than they can Our fertile soils are being exploited faster than they can recuperate.recuperate.

Forests, grasslands and wetlands have been converted to Forests, grasslands and wetlands have been converted to agricultural use, which has led to serious ecological questions.agricultural use, which has led to serious ecological questions.

Our fish resources, both marine and inland, show evidence of Our fish resources, both marine and inland, show evidence of exhaustion.(Aral sea 1960 -80)exhaustion.(Aral sea 1960 -80)

There are great disparities in the availability of nutritious food. There are great disparities in the availability of nutritious food. Some communities such as tribal people still face serious food Some communities such as tribal people still face serious food problems leading to malnutrition especially among women and problems leading to malnutrition especially among women and children.children.

ISSUES TO BE CONSIDERED - TO MEET FUTURE ISSUES TO BE CONSIDERED - TO MEET FUTURE DEMAND/food securityDEMAND/food security

Changing food habitsChanging food habits

Today the world is seeing a changing trend in dietary habits. As Today the world is seeing a changing trend in dietary habits. As living standards are improving, people are eating more non-living standards are improving, people are eating more non-vegetarian food. As people change from eating grain to meat, vegetarian food. As people change from eating grain to meat, the world’s demand for feed for livestock based on agriculture the world’s demand for feed for livestock based on agriculture increases as well. This uses more land per unit of food produced increases as well. This uses more land per unit of food produced and the result is that the world’s poor do not get enough to eat.and the result is that the world’s poor do not get enough to eat.

Gender disparityGender disparity

Women play an extremely vital role in food production as well Women play an extremely vital role in food production as well as cooking the meal and feeding children. In most rural as cooking the meal and feeding children. In most rural communities they have the least exposure to technical training communities they have the least exposure to technical training and to health workers trained in teaching/learning on issues and to health workers trained in teaching/learning on issues related to nutritional aspects. Women and girls frequently related to nutritional aspects. Women and girls frequently receive less food than the men. These disparities need to be receive less food than the men. These disparities need to be corrected.corrected.

• Agricultural land distribution pattern: Agricultural land distribution pattern: In India there is a shortage In India there is a shortage of cultivable productive land. Thus farm sizes are too small to of cultivable productive land. Thus farm sizes are too small to support a family on farm produce alone. With each generation, support a family on farm produce alone. With each generation, farms are being subdivided further.farms are being subdivided further.

• Poor agricultural practice: Poor agricultural practice: Poor environmental agricultural Poor environmental agricultural practices such as slash and burn, shifting cultivation, or practices such as slash and burn, shifting cultivation, or ‘rab‘rab’ ’ (wood ash) cultivation degrade forests.(wood ash) cultivation degrade forests.

• Degradation of agricultural land: Degradation of agricultural land: Globally 5 to 7 million hectares Globally 5 to 7 million hectares of farmland is degraded each year. Loss of nutrients and of farmland is degraded each year. Loss of nutrients and overuse of agricultural chemicals are major factors in land overuse of agricultural chemicals are major factors in land degradation. degradation. Water scarcityWater scarcity is an important aspect of poor is an important aspect of poor agricultural outputs. agricultural outputs. Salinization and water loggingSalinization and water logging has affected has affected a large amount of agricultural land worldwide.a large amount of agricultural land worldwide.

AGRICULTUREAGRICULTURE

Loss of Genetic DiversityLoss of Genetic Diversity

- - There are 50,000 known edible plants documented There are 50,000 known edible plants documented worldwide. worldwide. Of these only 15 varieties produce 90% of the Of these only 15 varieties produce 90% of the world’s food.world’s food.

- - Modern agricultural practices have resulted in a serious loss Modern agricultural practices have resulted in a serious loss of genetic variability of crops. India’s distinctive traditional of genetic variability of crops. India’s distinctive traditional varieties of rice alone are said to have varieties of rice alone are said to have numbered between 30 numbered between 30 and 50 thousand. Most of these have been lostand 50 thousand. Most of these have been lost to the farmer to the farmer during the last few decades as multinational seed companies during the last few decades as multinational seed companies push a few commercial types.push a few commercial types.

- - This creates a risk to our food security, as farmers can This creates a risk to our food security, as farmers can loose all their produce due to loose all their produce due to a rapidly spreading disease. a rapidly spreading disease. A cereal that has multiple varieties growingA cereal that has multiple varieties growing in different in different locations does not permit the rapidlocations does not permit the rapid spread of a disease spread of a disease..

The most effective method to introduce The most effective method to introduce desirable traitsdesirable traits into crops into crops is by using characteristics found in the wild relatives of crop is by using characteristics found in the wild relatives of crop plants. plants.

As the wilderness shrinks, these varieties are rapidly As the wilderness shrinks, these varieties are rapidly disappearing. Once they are lost, their desirable characteristics disappearing. Once they are lost, their desirable characteristics cannot be introduced when found necessary in future. cannot be introduced when found necessary in future.

Ensuring long-term food security may depend on conserving wild Ensuring long-term food security may depend on conserving wild relatives of crop plants in National Parks and Wildlife Sanctuaries. relatives of crop plants in National Parks and Wildlife Sanctuaries.

If plant genetic losses worldwide are not slowed down, some If plant genetic losses worldwide are not slowed down, some estimates show that estimates show that as many as 60,000 plant species, which as many as 60,000 plant species, which accounts for 25% of the world’s total, will be lost by the year 2025.accounts for 25% of the world’s total, will be lost by the year 2025.

Food Security:Food Security: is the ability of all people at all times to access is the ability of all people at all times to access enough food for an active and healthy life.enough food for an active and healthy life.

The following 3 conditions must be fulfilled to ensure food securityThe following 3 conditions must be fulfilled to ensure food security• Food must be availableFood must be available

• Each person must have access to it.Each person must have access to it.

• The food utilized must fulfill nutritional requirementsThe food utilized must fulfill nutritional requirements

It is estimated that It is estimated that 18 million people18 million people worldwide, most of whom are worldwide, most of whom are children, die each year due to starvation or malnutrition, and many children, die each year due to starvation or malnutrition, and many others suffer a variety of dietary deficiencies. The earth can only others suffer a variety of dietary deficiencies. The earth can only supply a limited amount of food. supply a limited amount of food.

If the world’s carrying capacity to produce food cannot meet the If the world’s carrying capacity to produce food cannot meet the needs of a growing population, anarchy and conflict will follow. needs of a growing population, anarchy and conflict will follow.

Thus food security is closely linked with Thus food security is closely linked with population control through the population control through the family welfare programfamily welfare program. It is also linked to the availability of . It is also linked to the availability of waterwater for for farming. Food security is only possible if food is equitably distributed to farming. Food security is only possible if food is equitably distributed to all. Many of us all. Many of us waste a large amount of foodwaste a large amount of food carelessly. This eventually carelessly. This eventually places great stress on our environmental resources.places great stress on our environmental resources.

Institutional support for small farmersInstitutional support for small farmers: A major concern is the support : A major concern is the support needed for small farmers so that they remain farmers rather than shifting needed for small farmers so that they remain farmers rather than shifting to urban centers as unskilled industrial workers.to urban centers as unskilled industrial workers.

Trade related issuesTrade related issues: International trade policies in regard to an : International trade policies in regard to an improved flow of food across national borders from those who have improved flow of food across national borders from those who have surplus to those who have a deficit in the developing world is another surplus to those who have a deficit in the developing world is another issue that is a concern for planners who deal with International trade issue that is a concern for planners who deal with International trade concerns. concerns. ‘Dumping‘Dumping’ of under priced foodstuffs produced in the ’ of under priced foodstuffs produced in the developed world, onto markets in undeveloped countries undermines developed world, onto markets in undeveloped countries undermines prices and forces farmers there to adopt unsustainable practices to prices and forces farmers there to adopt unsustainable practices to competecompete..

Fisheries ConcernFisheries Concern: : - Fish is an important protein food in many parts of the world. This - Fish is an important protein food in many parts of the world. This includes marine and fresh water fish. includes marine and fresh water fish.

- - While the supply of food from fisheries increased phenomenally While the supply of food from fisheries increased phenomenally between 1950 and 1990, in several parts of the world between 1950 and 1990, in several parts of the world fish catch has fish catch has since dropped due to over fishing. since dropped due to over fishing.

- In 1995 FAO reported that 44% of the world’s fisheries are fully or - In 1995 FAO reported that 44% of the world’s fisheries are fully or heavily exploited, 16% are already overexploited, 6% are depleted, heavily exploited, 16% are already overexploited, 6% are depleted, and only 3% are gradually recovering. and only 3% are gradually recovering. Ex:Ex: Canada had to virtually Canada had to virtually close down cod fishing in the 1990s due to depletion of fish reserves. close down cod fishing in the 1990s due to depletion of fish reserves.

- Modern fishing technologies- Modern fishing technologies using mechanized trawlers and using mechanized trawlers and small meshed netssmall meshed nets

lead directly to overexploitation, which is not sustainable. lead directly to overexploitation, which is not sustainable.

It is evident that fish have to breed successfully and It is evident that fish have to breed successfully and need need to to

have time to grow for the yield to be sustainable. have time to grow for the yield to be sustainable.

The worst hit are the small traditional fishermen who are The worst hit are the small traditional fishermen who are no match for organized trawlers.no match for organized trawlers.

Is There Any Way Out? Sustainable!Is There Any Way Out? Sustainable!

1.Protecting genetic diversity: 1.Protecting genetic diversity:

The most economical way to prevent loss of genetic diversity is by The most economical way to prevent loss of genetic diversity is by expanding the network and coverage of our Protected Areas. Collections in expanding the network and coverage of our Protected Areas. Collections in germplasm, seed banks and tissue culture facilities, are other possible ways germplasm, seed banks and tissue culture facilities, are other possible ways to prevent extinction but are extremely expensive.to prevent extinction but are extremely expensive.

2. 2. Environmental friendly farming methods:Environmental friendly farming methods:

Scientists now believe that the world will soon need a second green Scientists now believe that the world will soon need a second green revolution to meet our future demands of food based on a new ethic of land revolution to meet our future demands of food based on a new ethic of land and water management that must be based and water management that must be based on values which include on values which include environmental sensitivity, equity, biodiversity conservation of cultivars environmental sensitivity, equity, biodiversity conservation of cultivars and in-situ preservation of wild relatives of crop plants. and in-situ preservation of wild relatives of crop plants.

-- Shift from chemical agriculture to organic farmingShift from chemical agriculture to organic farming Organic farming does not use chemical fertilizers and Organic farming does not use chemical fertilizers and

chemical pesticides – return to traditional methods such as chemical pesticides – return to traditional methods such as crop rotation, use of green manures and biological control of crop rotation, use of green manures and biological control of pests.pests.

Organic farming that blends traditional knowledge with modern Organic farming that blends traditional knowledge with modern scientific ideas can, over a period of time, reverse soil scientific ideas can, over a period of time, reverse soil degradation and improve soil health.degradation and improve soil health.

Initially economic losses but better option in the long term. Ex: Initially economic losses but better option in the long term. Ex: CubaCuba

Several crops can be grown in urban settings, including vegetables and Several crops can be grown in urban settings, including vegetables and fruit which can be grown on waste household water and fertilizers from fruit which can be grown on waste household water and fertilizers from vermi-composting pits. vermi-composting pits.

33. . Prevention of water and land degradationPrevention of water and land degradation: : Pollution of water sources, land Pollution of water sources, land

degradation and desertification must be rapidly reversed. Adopting soil degradation and desertification must be rapidly reversed. Adopting soil conservation measures, using appropriate farming techniques, especially on hill conservation measures, using appropriate farming techniques, especially on hill slopes, enhancing the soil with organic matter, rotating crops and managing slopes, enhancing the soil with organic matter, rotating crops and managing watersheds at the micro level are a key to agricultural production to meet future watersheds at the micro level are a key to agricultural production to meet future needs.needs.

4. 4. Population controlPopulation control: : Most importantly food supply is closely linked to the Most importantly food supply is closely linked to the effectiveness of population control programs worldwide. The world needs better effectiveness of population control programs worldwide. The world needs better and sustainable methods of food production which is an important aspect of land-and sustainable methods of food production which is an important aspect of land-use management.use management.

5. 5. Education:Education: Educating women about nutrition, who are more closely Educating women about nutrition, who are more closely involved with feeding the family, is an important aspect of involved with feeding the family, is an important aspect of supporting the food needs/security of many developing countries.supporting the food needs/security of many developing countries.

6. 6. Pest ManagementPest Management: Integrated Pest Management includes : Integrated Pest Management includes preserving pest predators, using pest resistant seed varieties and preserving pest predators, using pest resistant seed varieties and reducing the use of chemical fertilizers.reducing the use of chemical fertilizers.

Pesticides and environmental problems:Pesticides and environmental problems: Insecticides – DDT, aldrin, dieldrin, lindane, malathion, parathion etc. Insecticides – DDT, aldrin, dieldrin, lindane, malathion, parathion etc. Herbicides – atrazine, simazine, tifualin etcHerbicides – atrazine, simazine, tifualin etc.. Fungicides - methyl bromide, carbon bisulfide, pentachlorophenol etc.Fungicides - methyl bromide, carbon bisulfide, pentachlorophenol etc.

- - Major pest control revolution – 1939 – entomologist Paul Mueller – DDT Major pest control revolution – 1939 – entomologist Paul Mueller – DDT (Dichloro-Diphenyl-Trichloroethane) –known since 1874 – a potent (Dichloro-Diphenyl-Trichloroethane) –known since 1874 – a potent insecticide – received Noble Prize in 1948 – banned in US in 1970.insecticide – received Noble Prize in 1948 – banned in US in 1970.

0.45kg/head-2.3 m t/yr0.45kg/head-2.3 m t/yrThe problems with the pesticidesThe problems with the pesticides

- - toxicitytoxicity

- development of genetic resistance to pesticides by pest organisms- development of genetic resistance to pesticides by pest organisms

- - kills natural predators and parasiteskills natural predators and parasites

- persistence - persistence

– – bio-amplification/bio-magnification – process of accumulating higher bio-amplification/bio-magnification – process of accumulating higher and higher amounts/concentration of material within the cell of an and higher amounts/concentration of material within the cell of an

animal through food chainanimal through food chain..

Bio-amplification: Ex:Bio-amplification: Ex:

DDT IN FISH EATING BIRDS (OSPREYS) 25 ppm

DDT IN LARGE FISH (needle fish) 2 ppm

DDT IN SMALL FISH

(minnows) 0.5 ppm

DDT in zooplankton

0.04 ppm

DDT in water 0.000003ppm or 3ppt

7. 7. Alternate Food SourceAlternate Food Source Food can be innovatively produced if we break out of the current Food can be innovatively produced if we break out of the current

agricultural patterns. agricultural patterns. This includesThis includes

- Working on new avenues to produce food, such as using forests - Working on new avenues to produce food, such as using forests for their multiple non-wood forest products such as fruit, for their multiple non-wood forest products such as fruit, mushrooms,mushrooms, sap, sap, etc.etc. which can be used for food if harvested which can be used for food if harvested sustainably. Of course, this takes time, as people must develop a sustainably. Of course, this takes time, as people must develop a taste for these new foods.taste for these new foods.

- Using unfamiliar crops such as - Using unfamiliar crops such as Nagli,Nagli, which are grown on poor soil which are grown on poor soil on hill slopes is another option. This crop grown in the Western on hill slopes is another option. This crop grown in the Western Ghats now has no market and is thus rarely grown. Only local Ghats now has no market and is thus rarely grown. Only local people use this nutritious crop themselves. It is thus not as people use this nutritious crop themselves. It is thus not as extensively cultivated as in the past. Popularising this crop could extensively cultivated as in the past. Popularising this crop could add to food availability from marginal lands. add to food availability from marginal lands. (snake gourd in Italy)(snake gourd in Italy)

- - Several foods can be popularized from yet unused seafood Several foods can be popularized from yet unused seafood products such as seaweed as long as this is done at sustainable products such as seaweed as long as this is done at sustainable levels.levels.

Dear all, If you have a function/party at your home and if there is excess food available at the end, don't

hesitate to call 1098   (only in India ) - child helpline. They will come and collect the food.

'Helping hands are better than Praying Lips'.

World Food Day – October 16World Food Day – October 16thth..

We must not only provide food for all, but also work out We must not only provide food for all, but also work out more equitable distribution of both food and water, more equitable distribution of both food and water, reduce agricultural dependence on the use of fertilizers reduce agricultural dependence on the use of fertilizers and pesticides (which have long term ill effects on and pesticides (which have long term ill effects on human wellbeing) and provide an increasing support for human wellbeing) and provide an increasing support for preserving wild relatives of crop plants in Protected preserving wild relatives of crop plants in Protected

Areas.Areas.