# Environmental Impact Assessment

Part of the Environmental Science Merit Badge Digital Resource Guide: [Introduction & Overview](https://merit-badge.university/merit-badges/environmental-science/guide/index.md)

*10. Environmental Impact*

> **10.** Identify the environmental impact topics that would need to be addressed for a construction project such as building a house, adding a new building to your Scout camp, or one you create on your own that is approved by your counselor. Evaluate the purpose and benefit of the proposed project, alternatives (including a no-action alternative), and any environmental consequences. Discuss with your counselor.

## What Is an Environmental Impact Assessment?

An **Environmental Impact Assessment (EIA)** is a formal process that evaluates how a proposed project might affect the natural environment. Before a highway is built, a building goes up, or a dam is constructed, experts study the potential effects on air, water, land, wildlife, and people.

In the United States, the **National Environmental Policy Act (NEPA)**, signed in 1970, requires federal agencies to assess the environmental impact of major projects before they begin. Many states have similar laws for state and local projects.

You are not expected to write a professional EIA for this requirement. But you should think through the same questions a professional would ask.

## Choosing Your Project

Pick a construction project you can evaluate. Good options include:

- **Building a house** on an undeveloped lot
- **Adding a building to your Scout camp** (a dining hall, shower house, or storage building)
- **A road or trail extension** in a park or community
- **A school addition or new playground**
- **Any project your counselor approves**

The best choice is a project you can actually visit or visualize clearly. If you pick a Scout camp addition, for example, you can walk the site and observe the existing environment firsthand.

## The Three Parts of Your Evaluation

### Part 1: Purpose and Benefit

Every project exists for a reason. Start by clearly stating:

- **What is the project?** Describe what would be built.
- **Why is it needed?** What problem does it solve or what need does it meet?
- **Who benefits?** Individuals, a community, a camp, a school?

Be specific. "We need a new dining hall at camp because the current one only seats 80 Scouts and camp attendance has grown to 150" is much stronger than "we need more space."

### Part 2: Alternatives — Including No Action

A critical part of any environmental assessment is considering **alternatives** — different ways to achieve the same goal, including doing nothing at all.

- **The preferred alternative** — the proposed project as designed
- **Modified alternatives** — Could the project be smaller? In a different location? Built with different materials? Could an existing structure be renovated instead?
- **The no-action alternative** — What happens if the project is not built? This is always considered. Sometimes the best decision is to do nothing.

> **Tip**
>
> The no-action alternative is not just "nothing changes." It means describing what the consequences are of NOT building the project. If you do not build the new dining hall, what happens to the camp? Do they turn away Scouts? Eat in shifts? This helps weigh the project's benefits against its environmental costs.

### Part 3: Environmental Consequences

This is the heart of the assessment. For your chosen project, consider the impact on each of these areas:

**Environmental Impact Topics** — Areas to evaluate for your project

- [ ] Land and soil: Will the project require clearing vegetation, grading, or excavation? Will it increase erosion?
- [ ] Water: Will the project affect streams, wetlands, or groundwater? Will it increase stormwater runoff?
- [ ] Air quality: Will construction or operation produce dust, emissions, or odors?
- [ ] Wildlife and habitat: Does the site provide habitat for any species? Will construction displace animals or destroy nesting sites?
- [ ] Vegetation: Will trees or native plants be removed? Can they be replaced?
- [ ] Noise: Will construction or operation create noise that disturbs wildlife or neighbors?
- [ ] Waste: What waste will the project generate during construction and operation? How will it be managed?
- [ ] Cultural and historical resources: Are there any historical, archaeological, or culturally significant features on or near the site?
- [ ] Visual impact: Will the project change the appearance of the landscape?
- [ ] Cumulative effects: How does this project add to the effects of other development in the area?

## Putting It All Together

Your discussion with your counselor should follow a logical flow:

1. **Describe the project** and its purpose
2. **Walk through the alternatives** you considered
3. **Identify the environmental impacts** — both positive and negative
4. **Suggest mitigation measures** — things that could reduce the negative impacts (for example: planting trees to replace ones removed, using permeable pavement to reduce runoff, scheduling construction outside of bird nesting season)
5. **Make a recommendation** — Based on your analysis, do you think the project should proceed? With modifications? Or should the no-action alternative be chosen?

> **Did You Know?**
>
> The concept of the "no-action alternative" was revolutionary when NEPA introduced it. Before 1970, most projects were evaluated only on whether they could be built — not whether they should be. NEPA forced decision-makers to consider "what if we just don't?" as a legitimate option.

Video: [What Is an Environmental Impact Assessment?](https://www.youtube.com/watch?v=V7W3l1Qgj-0)

Video: [Environmental Impact Assessments — Key to Sustainable Development](https://www.youtube.com/watch?v=aznhAlo8rJo)

[EPA: National Environmental Policy Act (NEPA)](https://www.epa.gov/nepa): Learn about the federal law that requires environmental impact assessment for major projects.

![A Scout standing at the edge of a wooded clearing at a Scout camp, holding a clipboard and looking at the terrain, considering where a new building might go](https://ik.imagekit.io/doulacoop/tr:w-800/mbu-assets/merit-badges/environmental-science/guide/scout-camp-site-assessment?v=c232dd9c)

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You have learned to think like an environmental planner. Now let's look at where this kind of thinking can take you as a career.

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- Previous: [Invasive Species](https://merit-badge.university/merit-badges/environmental-science/guide/req9/index.md)
- Next: [Career Exploration](https://merit-badge.university/merit-badges/environmental-science/guide/req11/index.md)
