What is a key characteristic of the heat island effect and a common urban mitigation?

• A. Urban areas have higher temperatures due to reduced vegetation and heat-absorbing surfaces; mitigation includes trees, green roofs, reflective pavements, and water features
• B. Rural areas are warmer than cities because of soil heat
• C. Heat islands are not influenced by urban design
• D. Mitigation is only possible with large-scale policy changes

Answer: (A)

Urban areas become hotter because built surfaces like concrete and asphalt absorb and store heat, and there’s less vegetation to shade and provide cooling through evapotranspiration. This combination raises local temperatures, especially during hot days and nights. Mitigation works by increasing shade and moisture loss through trees and green roofs, using reflective or cool pavements to reduce heat absorption, and incorporating water features to promote evaporative cooling. This explanation matches the characteristic pattern of the heat island effect and practical, commonly used cooling strategies, making it the best choice. The other statements don’t fit: rural areas aren’t typically warmer due to soil heat; heat islands are influenced by how cities are designed; and effective mitigation can occur with local, not just large-scale, actions.