Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Tikal National Park' has mentioned 'Drought' in the following places:
Occurrence Sentence Text Source
However, the arrival of rain was often unpredictable, and long period of drought could occur before the crops ripen, which severely threatened the inhabitants of the city.
[80] However, new research regarding paleoenvironmental proxies from the Tikal reservoir system suggests that a meteorological drought may have led to the abandonment of Tikal,[81] fouling some reservoirs near the temple and palace with algae blooms, while other reservoirs remained drinkable.