Cities are often several degrees warmer than the countryside around them, a pattern known as the urban heat island effect. Dark ro, roads, a parking lo absorb la amounts o sunlight dur the d and rel this sto heat grad after sunset. Cities also have fewer trees, which help cool the air as water evaporates from their leaves. To reduce these higher temperatures, planners are testing solutions such as reflective roofing materials and rooftop gardens.

Type only the missing letters. Each box is one letter, and the number of boxes matches the letters that are missing.