Podcast
Questions and Answers
Which of the following is NOT a modern sustainable farming technique discussed in the content?
Which of the following is NOT a modern sustainable farming technique discussed in the content?
What is a potential drawback of aquaculture?
What is a potential drawback of aquaculture?
Which is NOT an environmental benefit of sustainable forestry practices?
Which is NOT an environmental benefit of sustainable forestry practices?
How can prescribed burns benefit forests?
How can prescribed burns benefit forests?
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Which of the following is NOT a benefit of organic agriculture?
Which of the following is NOT a benefit of organic agriculture?
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What is the primary purpose of terracing in agriculture?
What is the primary purpose of terracing in agriculture?
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What is the Delaney clause?
What is the Delaney clause?
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Which of the following practices is NOT associated with sustainable forestry?
Which of the following practices is NOT associated with sustainable forestry?
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Which of the following is a major environmental consequence of aquaculture?
Which of the following is a major environmental consequence of aquaculture?
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Which of the following is a characteristic of no-till agriculture?
Which of the following is a characteristic of no-till agriculture?
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What is the primary concern regarding the increasing consumption of meat?
What is the primary concern regarding the increasing consumption of meat?
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Which of the following is NOT an environmental indicator of sustainability?
Which of the following is NOT an environmental indicator of sustainability?
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How does intercropping contribute to sustainable agriculture?
How does intercropping contribute to sustainable agriculture?
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What is the primary goal of Integrated Pest Management (IPM)?
What is the primary goal of Integrated Pest Management (IPM)?
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Which of the following is an example of a non-renewable resource?
Which of the following is an example of a non-renewable resource?
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What does the term "maximum sustainable yield" refer to?
What does the term "maximum sustainable yield" refer to?
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What is a major threat to food production?
What is a major threat to food production?
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What is the primary cause of increasing atmospheric CO2 levels?
What is the primary cause of increasing atmospheric CO2 levels?
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Which of the following is a key element of sustainable development?
Which of the following is a key element of sustainable development?
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What is the primary benefit of crop rotation in sustainable agriculture?
What is the primary benefit of crop rotation in sustainable agriculture?
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What is the purpose of agroforestry in sustainable agriculture?
What is the purpose of agroforestry in sustainable agriculture?
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How does biodiversity contribute to the health of ecosystems?
How does biodiversity contribute to the health of ecosystems?
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Which of the following is a drawback of IPM?
Which of the following is a drawback of IPM?
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What is the relationship between human population growth and resource depletion?
What is the relationship between human population growth and resource depletion?
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Which of the following is an example of a sustainable practice in agriculture?
Which of the following is an example of a sustainable practice in agriculture?
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What is the primary cause of ocean acidification?
What is the primary cause of ocean acidification?
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What is a primary factor contributing to a larger ecological footprint in developed nations compared to developing nations?
What is a primary factor contributing to a larger ecological footprint in developed nations compared to developing nations?
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Which of the following activities would directly contribute to a decrease in an individual's carbon footprint?
Which of the following activities would directly contribute to a decrease in an individual's carbon footprint?
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Which of the following is NOT a factor that contributes to a larger ecological footprint?
Which of the following is NOT a factor that contributes to a larger ecological footprint?
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Which of the following is the best definition of an ecological footprint?
Which of the following is the best definition of an ecological footprint?
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Which of the following is a factor that would likely contribute to a smaller ecological footprint?
Which of the following is a factor that would likely contribute to a smaller ecological footprint?
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Flashcards
Ecological Footprint
Ecological Footprint
A measure of land and water needed for producing resources and processing waste.
Carbon Footprint
Carbon Footprint
Total greenhouse gases emitted by a person or entity, mainly CO2.
Factors Increasing Footprint
Factors Increasing Footprint
Elements that cause a higher ecological footprint, like affluence and meat consumption.
Decreasing Footprint
Decreasing Footprint
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Developed vs. Developing Countries
Developed vs. Developing Countries
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Intercropping
Intercropping
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Contour Plowing
Contour Plowing
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Terracing
Terracing
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Perennial Plants
Perennial Plants
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No-Till Agriculture
No-Till Agriculture
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Green Manure
Green Manure
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Rotational Grazing
Rotational Grazing
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Organic Agriculture
Organic Agriculture
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Sustainable Forestry
Sustainable Forestry
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Prescribed Burns
Prescribed Burns
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Sustainability
Sustainability
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Maximum Sustainable Yield
Maximum Sustainable Yield
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Environmental Indicators
Environmental Indicators
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Biodiversity
Biodiversity
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Food Production
Food Production
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Atmospheric CO2
Atmospheric CO2
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Integrated Pest Management (IPM)
Integrated Pest Management (IPM)
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Crop Rotation
Crop Rotation
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Biocontrol
Biocontrol
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Soil Conservation
Soil Conservation
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Agroforestry
Agroforestry
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Resource Depletion
Resource Depletion
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Global Extinction Rate
Global Extinction Rate
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Sustainable Development
Sustainable Development
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Study Notes
Ecological Footprint
- A measure of land and water needed to produce resources and process waste.
- Calculated by summing the area required for food, water, energy, clothing, housing, and transportation.
- Individuals in developed nations typically have larger footprints than those in developing nations.
Carbon Footprint
- Measures greenhouse gas emissions (primarily CO2) from activities (directly or indirectly).
- CO2 is the most abundant greenhouse gas, with methane and other gases also included.
- Factors like manufacturing, transportation, and food production contribute to a carbon footprint.
Factors Affecting Footprint
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Increases: Affluence (wealth), larger homes, increased travel (fuel consumption), meat consumption (increased land, water, and energy).
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Decreases: Renewable energy use, public transportation, plant-based diets, reduced consumption, and decreased energy use.
Footprint Comparisons
- US footprint: 5.1 Earths.
- World average footprint: 1.85 Earths.
Sustainability
- Using resources without compromising future generations' ability to do the same.
- Developed nations consume more resources than developing countries.
- Earth's growing population (8 billion) and consumption patterns pose a challenge.
Sustainability Benchmarks
- Environmental Systems: Monitor to prevent irreversible damage.
- Renewable Resources: Use at a rate slower than regeneration.
- Non-renewable Resources: Conserve usage.
Sustainable Development
- Balancing current needs with resource management for future generations.
Maximum Sustainable Yield
- The highest amount of a renewable resource that can be harvested without depleting it.
- Roughly half of the carrying capacity, maximizing yield and regeneration.
Environmental Indicators of Sustainability
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Biodiversity: Genetic, species, and ecosystem diversity: higher = healthier ecosystems. Declining biodiversity indicates pollution, habitat destruction, and climate change.
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Food Production: Earth's ability to support agriculture, threatened by climate change, soil degradation, and increased meat consumption.
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Atmospheric Temperature and CO2: Life depends on a narrow temperature range. Increased CO2 (greenhouse gas) leads to higher temperatures, deforestation, and fossil fuel combustion.
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Human Population and Resource Depletion: Growing populations and unsustainable resource extraction harm ecosystems.
Integrated Pest Management (IPM)
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Aims to minimize environmental disruption and pesticide use.
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Methods: Crop rotation, intercropping, biocontrol, minimal pesticide use.
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Crop Rotation: Planting different crops to prevent pest adaptation and disease buildup.
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Intercropping: Growing different crops simultaneously, potentially attracting beneficial insects for pest control.
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Biocontrol: Introducing natural enemies (predators, parasites) of pests.
Sustainable Agriculture
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Balancing food production and soil health.
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Soil Conservation: Preventing erosion, enhancing nutrients, and organic matter in soil.
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Minimizing Non-renewable Resources: Reduce reliance on fossil fuels and synthetic inputs.
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Economic Viability: Sustainable methods may be more labor-intensive and costly initially but can be more productive over the long term.
Methods of Traditional Sustainable Farming
- Agroforestry: Using vegetation as windbreaks.
- Strip Cropping / Intercropping: Different crop spacing and rooting prevents erosion.
- Contour Plowing: Farming parallel to slopes.
- Terracing: Transforming slopes into flat terraces.
Modern Sustainable Farming Techniques
- Perennial Plants: Plants living for multiple years, reducing the need for replanting.
- No-Till Agriculture: Not plowing or tilling land periodically.
- Green Manure: Growing plants and then plowing them under to enrich the soil.
More Modern Sustainable Techniques
- Limestone Use: Calcic carbonate sedimentary rock as fertilizer.
- Rotational Grazing: Moving livestock between pastures to avoid overgrazing.
- Organic Agriculture: Producing crops without synthetic pesticides or fertilizers to maintain soil health.
Aquaculture
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Increasing fish production without depleting wild fisheries.
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Benefits: High yield, minimal land use, reduced risk of fishery collapse.
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Drawbacks: Low biodiversity, high density risks disease and water contamination, risk of introducing non-native species.
Methods for Reducing Human Impacts on Forest Tree Removal
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Clear-cutting and selective cutting: Methods of removing trees.
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Reforestation: Replanting trees after clear-cutting.
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Erosion Reduction: Reforestation helps to reduce erosion and increases carbon sequestration.
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Sustainable Forestry: Managing forests to maximize clean water, biodiversity, and carbon sequestration.
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Selective cutting: Removing some mature trees, leaving others behind to promote biodiversity and regeneration. Preventing habitat fragmentation.
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Fire Suppression/Prescribed Burns: Putting out all forest fires can lead to a buildup of dry biomass, increasing the risk of large fires. Prescribed burns are controlled fires to remove dead biomass and promote nutrient recycling.
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Description
Test your knowledge on ecological and carbon footprints! This quiz covers the definitions, measurements, and factors influencing ecological impact, along with comparisons of different nations. Discover how lifestyle choices can affect our planet's health.