🚜ap human geography review

Coastal and Marine Areas

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Coastal and marine areas refer to the regions where land meets the ocean, including coastal ecosystems, marine habitats, and their associated resources. These areas are vital for biodiversity, economic activities, and cultural heritage, as they support fisheries, tourism, and provide ecosystem services that contribute to sustainable development.

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5 Must Know Facts For Your Next Test

  1. Coastal areas cover about 19% of the Earth's land surface but are home to over 50% of the world's population.
  2. Marine areas are critical for global food security, providing a significant portion of the protein consumed by billions of people worldwide.
  3. The health of coastal and marine ecosystems is threatened by pollution, climate change, overfishing, and habitat destruction, making sustainable management crucial.
  4. Coastal areas often act as natural buffers against storms and rising sea levels, highlighting their importance in climate adaptation strategies.
  5. Sustainable development in coastal and marine areas promotes balancing economic growth with environmental protection and social equity.

Review Questions

  • How do coastal and marine areas contribute to sustainable development?
    • Coastal and marine areas contribute to sustainable development by providing essential ecosystem services such as food production, carbon storage, and coastal protection. They support livelihoods through industries like fishing and tourism while also preserving biodiversity. Effective management of these resources is key to ensuring that future generations can benefit from them without degrading the environment.
  • Evaluate the impact of pollution on coastal and marine ecosystems and the implications for sustainable practices.
    • Pollution significantly harms coastal and marine ecosystems, leading to loss of biodiversity, declining fish stocks, and degradation of habitats. Nutrient runoff can cause harmful algal blooms that disrupt food chains and affect water quality. To promote sustainability, it is essential to implement measures that reduce pollution sources and encourage responsible waste management practices that protect these vital ecosystems.
  • Assess the role of Marine Protected Areas (MPAs) in enhancing the sustainability of coastal and marine areas amid environmental challenges.
    • Marine Protected Areas (MPAs) play a crucial role in enhancing sustainability by conserving critical habitats, allowing ecosystems to recover from overexploitation and environmental stressors. MPAs help maintain biodiversity and can increase resilience to climate change effects such as ocean acidification. By balancing protection with sustainable resource use, MPAs contribute to long-term ecological health and economic stability for communities reliant on marine resources.

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