Can Urban Forests Beat the Heat in Pakistani Cities?
Recent heat-sensing satellite images of Lahore posted by NASA show that "green spaces such as wooded areas, grassy areas, parks, and farm fields were significantly cooler than densely developed areas". NASA experts explain it as follows: Vegetation and bodies of water do not absorb and re-emit heat as easily as common building materials such as concrete, asphalt, and steel. Lahore Vegetation (Left) and Surface Temp (Right). Source: NASA A NASA post titled " Beating the Heat in Pakistan " says that "Differences in surface temperatures between developed and natural areas, known as surface urban heat islands, tend to be more pronounced than temperature differences associated with atmospheric heat islands, particularly during the daytime". “Surface urban heat islands exacerbate air temperatures by trapping heat and releasing it slowly, especially at night,” explained Muhammad Nasar-u-Minallah, a geographer at the University of the Punjab in Lahore. “The la...