Mexico continues to experience one of the most widespread droughts in decades. Unusually low rainfall has already reduced access to water in the capital. The reservoirs in Cutzamala outside the city provide a quarter of the city’s water but in 2020 the reservoirs were nearly 18 percentage points below normal levels. As precious reservoir levels plummet, the city authorities have reduced the flow from the reservoirs, which has been affecting tap water access. Some residents are relying on water delivery trucks and even donkeys. Researchers have pointed out potential future issues facing water supply. Global warming could exacerbate the water crisis in Mexico City with less rainfall, algae blooms in warm reservoirs, and increased demand for water as a result of a warming planet.

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