Walk the same street in sun and shade

On a hot, safe day, walk one familiar route twice at similar times: once along the sunnier side, once through available shade. Note surface material, tree canopy, waiting places, drinking water and where heat from traffic or buildings gathers. If you use a thermometer, treat it as one instrument reading, not a measure of personal heat risk.

The route cannot establish a city-wide heat-island trend, and conditions change with wind, humidity, season and sensor placement. Do not undertake it during dangerous heat. As observation, it asks a future-facing question: if hotter days become more common locally, who can reach shade and who must wait in exposure? Adaptation begins with climate projections, but its fairness can be inspected block by block.