[2026] PTE Academic Writing - Summarize written text

The architectural concept of vertical forests involves integrating thousands of trees and shrubs onto the facades of high-rise buildings to combat urban pollution and the heat island effect. By utilizing vertical space in densely populated metropolitan centers where horizontal land is unavailable, these structures act as biological lungs that sequester carbon and provide critical habitats for urban biodiversity. Proponents argue that these living buildings go beyond aesthetic appeal, offering a transformative way to regulate temperature and improve air quality for city dwellers.

However, the implementation of vertical forests presents significant engineering and economic challenges that currently limit their widespread adoption. The immense weight of the soil and vegetation requires reinforced structural support, which significantly increases initial construction costs compared to conventional skyscrapers. Furthermore, maintaining these complex facades requires specialized automated irrigation systems and high-altitude gardening, leading to high operational expenses. While vertical forests offer a visionary solution for green urban planning, their success depends on developing more affordable and low-maintenance biological systems for future development.