Rescuers face heavy rains, equipment failures in search for two people trapped in central Laos cave by flash floods.
A Coca-Cola plant pumps millions of litres of water in San Cristóbal de las Casas. But locals say their faucets run dry.
Climate change, pollution and waste have compounded water concerns by squeezing the Earth’s resources.
In some of Ethiopia’s remote villages, aid agencies are helping restore access to clean water.
