Environmental Science: Natural Resources

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Questions and Answers

Explain how the interdisciplinary nature of environmental science contributes to a more comprehensive understanding of environmental problems.

By combining insights from natural sciences, humanities, and social sciences, we gain a holistic view of environmental issues, considering the ecological, ethical, and socioeconomic dimensions.

Describe a scenario where the use of a renewable resource could still lead to environmental problems. How can this be mitigated?

Overharvesting bamboo without allowing sufficient time for regrowth can lead to deforestation and habitat loss. Mitigation involves sustainable harvesting practices and reforestation efforts.

How does the loss of biodiversity impact ecosystem services, and why are these services vital for human well-being?

A decline in biodiversity can reduce ecosystem services like pollination, water purification, and soil fertility. These services are crucial for food production, clean water supply, and overall environmental health, which directly impact human well-being.

Explain why addressing resource depletion requires a combination of technological solutions and changes in human behavior.

<p>Technological solutions like more efficient resource extraction and recycling can help, but behavioral changes such as reducing consumption and adopting sustainable practices are crucial to decrease overall demand.</p> Signup and view all the answers

Describe the potential long-term consequences of continued reliance on nonrenewable resources, and suggest two strategies to reduce this reliance.

<p>Continued use of nonrenewable resources can lead to resource scarcity, environmental degradation, and climate change. Strategies include investing in renewable energy sources and promoting energy efficiency.</p> Signup and view all the answers

How can the principles of environmental science inform policy decisions related to urban development and planning?

<p>Environmental science provides data and insights on the ecological impacts of urban development, helping policymakers make informed decisions about land use, infrastructure, and resource management to minimize environmental harm.</p> Signup and view all the answers

Many factors contribute to pollution. In what ways does pollution disproportionately affect vulnerable populations, and what measures can be taken to address this?

<p>Vulnerable populations, such as low-income communities, often live near pollution sources and have limited access to healthcare. Measures include stricter environmental regulations, community engagement, and equitable distribution of resources for environmental remediation.</p> Signup and view all the answers

Describe how habitat fragmentation contributes to the loss of biodiversity, and propose a strategy to mitigate this effect.

<p>Habitat fragmentation isolates populations, reduces genetic diversity, and limits species' ability to find food and mates. Creating wildlife corridors to connect fragmented habitats can help maintain biodiversity and allow for species migration.</p> Signup and view all the answers

Explain how a focus solely on economic growth without considering environmental impacts can ultimately undermine long-term sustainability.

<p>Unfettered economic growth can lead to resource depletion, pollution, and ecosystem degradation, jeopardizing the natural capital on which economies depend. Sustainable development requires balancing economic, social, and environmental considerations.</p> Signup and view all the answers

How can understanding the concept of carrying capacity help in managing human activities to prevent environmental degradation?

<p>Understanding carrying capacity, the maximum population size an environment can sustain, helps set limits on resource use and population growth to prevent overexploitation and degradation of the environment.</p> Signup and view all the answers

Flashcards

Environmental Science

The study of how the environment functions and human interactions with it, involving natural, social sciences, and humanities.

Resource Depletion

Using up large amounts of resources (both renewable and nonrenewable).

Pollution

Substances added to the environment that cause harm.

Biodiversity

The variety of living things in an environment, including species, genetics, and communities.

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Renewable Resources

Resources that are replaced relatively quickly by natural processes.

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Nonrenewable Resources

Resources that are replenished over millions of years.

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Study Notes

  • Humans rely on the natural environment for survival despite technological advancements.
  • Albert Einstein: "The environment is everything that isn't me."

Environmental Science

  • It is the study of how the environment works and how humans interact with it.
  • Interdisciplinary subject involving:
    • Natural sciences (biology)
    • Humanities (ethics, philosophy)
    • Social sciences (political science, geography, economics)
  • Three central questions:
    • How to solve environmental problems?
    • How do we use Earth's natural resources?
    • How do our actions alter the environment?

Environmental Problems

  • Resource depletion
  • Pollution
  • Loss of biodiversity

Resource Depletion

  • Resources are broken down into renewable and nonrenewable.
  • Renewable resources:
    • Replaced relatively quickly by natural processes
    • Example: bamboo trees
  • Nonrenewable resources:
    • Replenished over millions of years
    • Example: coal
  • Resource depletion: when large amounts of renewable and nonrenewable resources are used up
    • Deforestation
    • Overfishing
    • Overmining of copper

Pollution

  • The addition of a harmful substance into the environment
  • Often caused by humans
    • Air pollution: causes respiratory issues
    • Light pollution: affects turtle nesting grounds

Loss of Biodiversity

  • Biodiversity: the variety of living organisms in an environment
  • Includes:
    • Different species
    • Genetic variety within a population
    • Variety of communities within an ecosystem
  • Provides the world with things like quality soil and cross-pollination in plants

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