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🔍 Environmental Impact Study

Te Arotake Taiao — Assessing Human Effects on the Environment

🌏 What is Environmental Impact?

An environmental impact is any change to the environment — positive or negative — caused by human activities. Understanding these impacts helps us make better decisions.

An Environmental Impact Assessment (EIA) is a formal process to evaluate effects before projects begin.

Types of Environmental Impact

💧 Water Impacts

  • Pollution from farms, factories, sewage
  • Reduced water flow (dams, irrigation)
  • Warming of waterways
  • Contamination of groundwater

NZ example: Agricultural runoff causing algae blooms in rivers

💨 Air Impacts

  • Greenhouse gas emissions (CO₂, methane)
  • Air pollution from vehicles, industry
  • Dust from construction
  • Odor from farms and factories

NZ example: Vehicle emissions in Auckland; agricultural methane

🏔️ Land Impacts

  • Deforestation and habitat loss
  • Soil erosion and degradation
  • Urban sprawl onto farmland
  • Contamination from waste

NZ example: Erosion in hill country; pine plantation effects

🦜 Biodiversity Impacts

  • Species extinction
  • Habitat fragmentation
  • Introduction of pests
  • Disruption of food chains

NZ example: Predators threatening native birds; marine reserves

Environmental Impact Assessment Process

Steps in an EIA

  1. Screening — Does this project need an EIA?
  2. Scoping — What impacts should we study?
  3. Assessment — Measure and predict impacts
  4. Mitigation — How can we reduce negative impacts?
  5. Reporting — Document findings for decision-makers
  6. Monitoring — Check impacts after project starts

📋 Case Study Template

Assessing a Local Issue

Use this table to assess an environmental issue in your area:

Question Your Assessment
What is the activity/project?
What environment is affected?
Water impacts?
Air impacts?
Land impacts?
Biodiversity impacts?
What mitigation is possible?

🌿 Te Ao Māori Perspective

Kaitiakitanga — Environmental Guardianship

In te ao Māori, humans are not separate from nature — we are part of it. The concept of kaitiakitanga means we have a responsibility to protect the environment for future generations.

  • Environment has mauri (life force)
  • Rivers, mountains, and forests have their own identity and rights
  • Resource Management Act requires consultation with tangata whenua
  • Cultural Impact Assessments complement EIAs

✏️ Activities

Activity: Local Environmental Audit

Walk around your school or neighborhood and note:

  • What human activities are happening?
  • What environmental impacts can you see?
  • What's being done well?
  • What could be improved?

My observations:

👩‍🏫 Teacher Notes

Curriculum Links

  • Science: Planet Earth, Living World — ecology
  • Geography: Environmental sustainability
  • Social Studies: Decision-making, participation