Peruvian glaciers have shrunk by 25% since 1987, causing water shortages in rural villages. But ancient technology could help manage this precious resource.
Climate change threatens the water supply of nations around the world. But it's difficult to measure whether a region has sufficient water to satisfy the people who live there. Could satellites help?
Wastewater reuse suffers from a perception problem.
Banking water minimises the impact of evaporation and means that water can also be recycled from various sources.
Research shows water restrictions can mean well-off households have to cut down on leisure and luxury. For disadvantaged households, and particularly women, it is a different story.
Energy-efficient water supply is a wicked problem – and we might have found a way to solve it.
Unless African cities improve water management many will face severe water problems by 2035.
It's important to be wary of planting trees in places where none exist, or where there are significant water constraints.
Cape Town's water crisis holds valuable insights for other cities that need to adapt to the realities of climate change.
Bangalore's forgotten water wells are being revived, to help the city overcome centuries-old supply issues.
Climate change plus population growth means the city has to act soon.
Small solutions done properly can play a huge role in dealing with water scarcity.
When day zero arrives in Cape Town, the routine surveillance systems that monitor disease outbreaks will be enhanced to pick up new diseases.
The poor management of South Africa's water is affecting the entire country.
Global examples show South Africa that desalination could increase water output.
A drought levy is being proposed for water scarce Cape Town. The levy is facing wide opposition and there are claims it's punitive and punishes those trying to save water.
Developing a map of African countries' water poverty levels offers a transparent analysis for policymakers, governments and organisations that deal with water issues.
The water crisis in South Africa's Cape Town teaches us there's more at play than just rainfall. Disasters like droughts means the issue must be seen from many different perspectives, like politics.
Water is increasingly becoming scarce as the climate changes. There are four changes that cities can make to adapt to water scarcity.
There are a number of myths surrounding Cape Town's drought, one of them being that the city saw the crisis coming but didn't prepare for it.