What would cause a global water shortage?

Causes of water scarcity Here are some important causes of water shortage: Population expansion Just 50 years ago, the total number of people on earth has doubled and continues to grow. This is a result of larger family sizes and access to better health care and lifestyles. read more

Some of the Main Causes of Water Shortage. Environmentalists and small-scale activists these days have field days naming global warming and climate change as the root cause for the world’s water shortages. But this analogy is not entirely correct. read more

The drying Paraibuna dam, part of the Cantareira water system that provides greater São Paulo in Brazil with most of its water. Photograph: Roosevelt Cassio/Reuters Water is the driving force of all nature, Leonardo da Vinci claimed. read more