Exercises: Analyzing social and environmental consequences

The arrival of motorcycle taxis in a town brought jobs for young people, more noise downtown, affordable transport for older people and more emissions. Separate the social effects from the environmental ones and point out one you consider positive and one negative in each group, justifying your choice.

Think of a PET bottle you buy at the street market. Order the stages of its life cycle (disposal, manufacturing, oil extraction, use) and write one environmental implication of each stage, plus one decision that would reduce it.

Food delivery apps offer low prices and convenience, but the delivery rider usually works without benefits and takes on the risk of accidents. Identify which costs of the service do not appear in the price the customer pays, who actually pays them, and propose one rule that would make the service fairer.

A city council must choose between two parcel delivery systems for the city center: motorcycles (fast, with more emissions and noise) or cargo bicycles (slower, with no direct emissions, better for the riders' health, but requiring bike lanes). Evaluate both with the criteria of effectiveness, social effects and environmental effects, and recommend one option for short distances downtown, justifying your choice.