Notes on Hazardous Environments and Risk Factors

Introduction to Hazardous Environments

  • Learning Tasks:
    • Create a list or mind map of various hazards using images and prior knowledge.

Types of Natural Hazards

  • Identify and categorize different types of natural hazards based on their characteristics.

Learning Intentions:

  • Learning Intention 1: Identify the types of hazards.
  • Learning Intention 2: Describe the factors that affect risk.
  • Learning Intention 3: Explain the factors influencing risk levels.

Course Overview

  • iGCSE Geography Content:
    • Paper 1 (Physical Geography): Coastal Environments, Hazardous Environments
    • Paper 2 (Human Geography): Economic Activity and Energy, Urban Environments, Globalisation and Migration
    • Fieldwork Section: Includes practical components.

Relevance of Geography

  • Discuss the importance of studying geography in current times (2024).

Definitions and Differences

Key Concepts:

  • Natural Event:

    • A natural occurrence (e.g., earthquake, flood) without immediate risk to humans.

  • Natural Hazard:

    • A potential risk posed by natural events, dependent on human exposure.

  • Natural Disaster:

    • An event resulting in significant human damage, exceeding expected outcomes.

Questions for Discussion:

  • When does a natural hazard escalate into a natural disaster?
  • Define the terms mentioned above with classmates.

Categories of Hazards

  • Tectonic and Geological Hazards:

    • Caused by geological processes, e.g., plate tectonics leading to earthquakes and volcanic eruptions.

  • Climatic and Meteorological Hazards:

    • Driven by atmospheric conditions, e.g., heavy rainfall leading to floods.

Task:

  • Write definitions in your own words and categorize hazards using color codes.

Factors Affecting Risk

Key Factors:

  • Vulnerability:

    • More people in hazard zones increase risk (high population density increases exposure).

  • Nature of Natural Hazard:

    • Type: Predictability varies (e.g., droughts predictable, flash floods less so).
    • Frequency: Higher frequency increases the potential threat level.
    • Severity: Stronger hazards present greater risks (e.g., comparisons of earthquake magnitudes and their impacts).

  • Capacity to Cope:

    • Socioeconomic status affects ability to respond to hazards; High-Income Countries (HICs) have better resources for recovery.

Detailed Factors Impacting Risk

  • Wealth:

    • Richer nations can afford better construction and disaster response systems.

  • Technology:

    • Advanced technology aids prediction and warning, reducing risks.

  • Governance:

    • Corruption can hinder aid effectiveness; stable governments facilitate recovery.

  • Social Factors:

    • Age affects vulnerability; elderly and families with children may struggle with evacuation and recovery.

Geology and Location

Geology:

  • Rock types influence susceptibility to hazards (e.g., sedimentary rocks absorbing water may lead to landslides).

Location:

  • Choice of residence can increase vulnerability (e.g., coastal living increases flood risks; proximity to tectonic boundaries increases earthquake hazards).

Categories of Hazards Identified

  • Type of Tectonic Hazard:

    • A) Hurricane
    • B) Drought
    • C) Flooding
    • D) Earthquake

  • Selected examples could illustrate various hazards and their implications on society.