Presentation on theme: "Hazards of Industrial Agriculture"— Presentation transcript:
1 Hazards of Industrial Agriculture Key: AWL to Study, Low-frequency VocabularyWhat are the hazards of industrial agriculture?
2 Organic Farming: A Growing Trend Consumer demand for organic farming is rising at 20% per year.The highest growth is in Argentina, US, and China.People are growing conscious of adverse effects of industrial agriculture,where there is a focus onmaximizing profitsat the expense of healthand the environment.How do you think industrial agriculture contributes to global warming and water pollution?
3 Health Risks: Industrial Methods Pesticide residues on produceremain after washing and peeling.have links to cancer.Antibiotics we ingestfrom plant and animal sourceslead to the development of untreatablesuperbugsDo you worry about pesticide residues on or antibiotics in your food? Explain.
4 Additional Health Risks Plant and animal growth hormonesdisrupt endocrine system.lead to early puberty.Biological engineeringUnregulated items arevirtually invisible in stores.Manipulation ofgenetic code couldimpact health.How do you think genetically modified food might impact your health?
5 Environmental Hazards Environmental hazards comprise air pollution, global warming, and other problems.Synthetic fertilizerslargest source of nitrous oxideemissions300 times more toxic than carbondioxide gaseswill affect air pollution and intensifyglobal warming if continuedAre you concerned about air pollution in your country? Why or why not?
6 Authorities on Water Pollution Animal waste, fertilizers, and pesticides leach into soil.They run off through irrigation and contaminate ground water (large portion of water supply).They contain nitrates, which cause permanent damage to ground water.Are you concerned about water pollution in your country? Why or why not?
7 Dead Zones in Oceans Preponderance of nitrogen in fertilizers helps crops grow; harms oceansgenerates algal overgrowthAlgal overgrowthdepletes oxygenin waterno plant or animalcan survive
8 Unsustainable SoilIndustrial mono-cropping: one crop is planted repeatedly on a single field.The process relies on the use of synthetic fertilizers.Mono-cropping kills microorganisms needed to produce soil nutrients.Infertile soil leads to erosion,unsustainable farmlands,and reduced biodiversity.If mono-cropping is destroying farmlands and biodiversity, what is the alternative?
9 Vicious Cycle Soil infertility leads to a vicious cycle of fertilizer use.Increasing fertilizer use leads toenvironmental hazards.Increased use of pesticidesOnly the fittest pests survive.Stronger pesticides are then needed.What are the environmental hazards associated with the use of pesticides?
10 What are the advantages of eating organic food? Organic FarmingOrganic farming prohibitsthe use of synthetic fertilizersand pesticides, hormones,antibiotics, and geneticallymodified organisms.It ensures soil sustainabilityand overall quality.What are the advantages of eating organic food?
11 How does organic farming affect soil? Crop RotationHolistic farming techniquesinfuse soil with essential nutrients.ensure different crops are planted every year.vary the nutrient demand in soil.create sustainable soil.How does organic farming affect soil?
12 Animal Welfare Small-scale organic farms are Free-range farms less likely to confine livestockto small spaces.against the use of antibiotics.Free-range farmsallow animals to roam freely.reduce stress and susceptibilityto disease.How do you feel about confining animals to small spaces in order to produce food?