Part 7/12:
Data analysis from various sites indicates significant shifts in resource use, including an upward trend toward less suitable building materials over time, which hints at mounting ecological pressures. Pollen studies suggest that deforestation and reduced agricultural yield were exacerbated by climatic changes, particularly a significant drought around 800 CE. Evidence shows that long-term droughts may have compromised the quality of available water, further straining civil infrastructures essential for urban survival.