💡 20-Idea Heat & Flood Brainstorm

Teams rapidly generate at least 20 distinct solution ideas responding to their team "How Might We" statement. Ideas must include material-based strategies (e.g., permeable pavement types, reflective coatings, green roofs, bioswales, urban tree canopies, rain gardens, cool roofs) and note which specific user need each idea addresses. Quantity is prioritized over quality; no evaluation during this round.