This post was co-authored with Jose Carlos Lombana, co-founder of Sistemas de Captación de Agua Pluvial (SCAP).
This story is part of the “Aqueduct Sneak Peek” series. Aqueduct Sneak Peek provides an early look at how various stakeholders can use Aqueduct’s updated global water risk maps, which will be released in January 2013. Read more posts in this series.
A study by scientists at The Nature Conservancy and other institutions estimates that by 2050, more than 1 billion city dwellers may be living on less than one bathtub’s worth of water a day. While this and other water risks are undeniably troubling, they can be overcome in many cases. With the right data and innovation, entrepreneurs can turn these risks into business opportunities.
Rainwater Harvesting Solutions in Mexico City
Mexico City, the biggest metropolis in the Western hemisphere, faces significant water shortages, leaving many domestic, agricultural, and industrial users exposed to severe water-related risks. The city was built on the foundations of the Aztec capital, on the bed of Lake Texcoco. Today, centuries later, its groundwater supplies are rapidly diminishing, and it relies on a network of reservoirs and decaying infrastructure to pump in water from hundreds of miles away. Furthermore, urban growth and climate change are pushing Mexico City’s water supply to the edge. Reservoirs were dangerously low during the 2009 drought, leading the government to cut off water in some areas of the city.