A Spanish company has devised a system to extract drinking water from thin air to supply arid regions where people are in desperate need. “The goal is to help people,” said Enrique Veiga, the 82-year-old engineer who invented the machine during a harsh drought in southern Spain in the 1990s. “The goal is to get […]

An estimated 92% of the world’s population lives in areas where air pollution exceeds safety limits, according to the World Health Organization (WHO), which has released new research showing where the worst – and least – affected places are. Interactive maps highlight the magnitude of the problem: swathes of the world are coloured yellow, orange, red and purple, ...