Question 2 of 7: Environmental Impact, Ethics & Sustainable Development

Question 2: Environmental Impact, Ethics & Sustainable Development (20 marks)

Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.

2(i) — Comparing the wind-turbine proposal (four key points). A ridge-and-forest wind development trades a low-carbon energy benefit against real ecological and social costs, so the engineer must weigh at least four dimensions before calling it “viable”:

1. Energy yield vs. life-cycle footprint. Quantify the resource (mean wind speed, capacity factor, annual MWh) and compare the net greenhouse-gas and energy payback over the ~20-year life against the fossil generation it displaces — including the emissions embodied in access roads, foundations and clearing.
2. Habitat and biodiversity loss. Ridge forest is habitat; clearing fragments it and turbines pose collision risk to birds and bats along migratory ridgelines. The engineer applies the mitigation hierarchy — avoid, minimize, restore, offset — and screens the project under the federal Impact Assessment Act / provincial EA process.
3. Community and visual/acoustic impact. Noise, shadow flicker, and viewshed change affect nearby residents and land users; meaningful consultation (including Indigenous rights-holders) and setback standards determine social acceptability.
4. Techno-economic and grid feasibility. Levelized cost of energy, transmission distance to load, intermittency/firming, and end-of-life decommissioning cost decide whether the project is genuinely a viable energy source or merely a nominal one.

2(ii) — Duties on discovering the disinfection-chamber leak. The engineer’s paramount, legally-enforceable duty under the provincial Engineers Act and the EGBC/Engineers Canada Code of Ethics is to hold the safety and welfare of the public paramount — here, the drinking-water consumers downstream of a possibly-failing disinfection barrier. The practitioner must promptly and formally report the suspected leak in writing to the client/operator, recommend the plant not be placed into (or be removed from) potable service until the barrier is verified, and, if the client fails to act, escalate to the regulator (drinking-water officer / medical health officer). Documenting the observation and advice protects both the public and the engineer.

The scenario also frames a conflict of interest in two parts: (a) an interest of the practitioner in the practitioner’s own actions — e.g. a financial or schedule incentive (the construction firm’s bonus for on-time commissioning) that could bias the engineer toward downplaying the leak; and (b) the interest of a party affected by the action — the water consumers (and the public health authority) whose safety depends on an honest call. Professional duty requires the engineer to disclose any such personal interest, decline to let it govern the judgment, and act to protect the affected party even at cost to the employer’s convenience.

2(iii) — Three problems of a Level I/II-only view. Confining a sustainability discussion to Level I (technical feasibility) and Level II (ecological/social/governance systems) while omitting Level III (ethical judgement) creates three recurring problems:

1. Intergenerational equity is ignored. Technical and even ecological optimization over a 20-year horizon can still deplete a resource or defer harm onto future generations — the ethical “ought” that limits present use is a Level III question.
2. Distributional injustice. A project can be technically sound and net-beneficial in aggregate yet concentrate its burdens on a specific (often marginalized) community; without the ethical layer these trade-offs are treated as mere externalities rather than as questions of fairness and consent.
3. No basis to refuse a “feasible” but wrong project. Levels I–II can declare something buildable and profitable; only the ethical layer supplies the professional’s duty to say “we can, but we should not” — e.g. exploiting a non-renewable resource with irreversible ecological damage.