Could these five innovations help solve the global water crisis?

A number of creative approaches aim to increase access to clean water in developing countries. We asked two experts to assess some of themThe global water crisis has many causes, requiring many different solutions. As 1.2 billion people live in areas of water scarcity, these solutions must span policy, technology, and behaviour change to make a real difference.
A number of technological innovations address the crisis in novel ways. We asked two water experts – Vincent Casey, senior water a