Read the six-source classroom packet on limiting unnecessary nighttime lighting. Then write an essay that synthesizes material from at least three sources and develops a defensible position on how a community or institution should respond.
What the evaluator is looking for
AP readers look for a defensible thesis, accurately represented evidence, sustained commentary, and sophistication created through qualification, context, or attention to tension.
Planning approach
Begin by grouping the packet around need, design, and accountability for limiting unnecessary nighttime lighting. Use Sources A and C to explain why the problem is public, test that account against Source B, then let Sources D and E qualify the remedy. End with Source F to define a measurable version of the claim: adopt shielded lighting standards while retaining safety-based exceptions.
Original source packet
Source A — Community narrative
A reported scene about limiting unnecessary nighttime lighting. The source centers on a rural resident watches the Milky Way disappear over a decade. The detail matters because it identifies a burden that averages can hide. The author also marks uncertainty and avoids claiming universal experience. In an essay, it can establish urgency while another source supplies scale. The document includes enough context for a reader to evaluate its scope.
Source B — Quantitative report
A statistical brief about limiting unnecessary nighttime lighting. Its evidence describes sky-quality measurements track expanding light domes around commercial corridors. This evidence supplies a mechanism rather than a slogan. The source warns that local conditions may prevent easy generalization. It works best beside a source that tests prevalence or cost. The document includes enough context for a reader to evaluate its scope.
Source C — Historical analysis
A archival essay about limiting unnecessary nighttime lighting. The author examines ecologists document disrupted migration and insect behavior. The account clarifies where responsibility and consequence meet. Readers are asked to distinguish a recurring pattern from a guaranteed result. A writer could use it to qualify both inaction and overreach. The document includes enough context for a reader to evaluate its scope.
Source D — Critical commentary
A budget critique about limiting unnecessary nighttime lighting. This document records public-safety officials caution against dimming poorly designed pedestrian routes. Its contribution is a concrete test for broad policy language. A short limitations note separates observation from causal proof. Its strongest synthesis role is to challenge a neighboring source’s assumptions. The document includes enough context for a reader to evaluate its scope.
Source E — Stakeholder interview
A moderated exchange about limiting unnecessary nighttime lighting. Readers encounter business owners question retrofit costs and advertising limits. The example shows what must change if the proposal is genuine. Its conclusion remains conditional on definitions and comparable evidence. Placed in conversation, it helps convert values into design criteria. The document includes enough context for a reader to evaluate its scope.
Source F — Implementation proposal
A operating proposal about limiting unnecessary nighttime lighting. The source centers on an ordinance phases in shields, warm color temperatures, and complaint review. The detail matters because it identifies a burden that averages can hide. The author also marks uncertainty and avoids claiming universal experience. In an essay, it can establish urgency while another source supplies scale. The document includes enough context for a reader to evaluate its scope.
Model response
Communities should require shielded, warm-colored outdoor lighting, with documented exceptions for locations where a safety review shows that brighter or differently placed light is necessary. The goal is not darkness everywhere. It is useful light directed where people need it.
Source B’s sky-quality measurements show expanding light domes around commercial corridors. Source C gives that pattern ecological significance by documenting effects on migration and insect behavior. Together, the sources establish that light escaping upward or sideways creates regional consequences beyond the property paying the electric bill. A fixture standard addresses the direction and color of illumination rather than simply imposing an arbitrary curfew.
Safety officials in Source D caution against dimming poorly designed pedestrian routes. Their concern should determine the exception process. A photometric review can identify dark gaps, glare that hides faces, and areas where consistent lower light is safer than isolated brightness. Business owners in Source E also raise retrofit costs; phasing standards in at replacement time would reduce waste while still changing the long-term system.
The ordinance outlined in Source F combines shields, warmer color temperatures, and complaint review. Those elements allow residents to report both excessive glare and inadequate visibility. Source A’s account of a disappearing Milky Way explains what can be recovered, but astronomy alone need not carry the policy. Lower energy use, better visibility, and reduced ecological disruption make careful lighting a practical public standard.
Structural breakdown
The response to “Preserving Dark Skies” pairs narrative with data, sets institutional history against a concrete objection, and uses the final sources to narrow the thesis into a measurable proposal. Its commentary explains relationships among sources instead of filing six separate summaries.
- Verify that the thesis gives a qualified answer about limiting unnecessary nighttime lighting.
- Use Source A for mechanism and Source B for scale; do not treat them as interchangeable.
- Explain how Source D changes the design rather than merely “disagreeing.”
- Connect the implementation evidence directly to the proposed safeguard.
- Check every source reference for an accurate claim and a stated limit.
Format reference: College Board: AP English Language Past Exam Questions. This model is original and is not an official or accepted submission.