Operation Santa Claus: elderly Hongkongers find new purpose on rooftop farms
On a sunny weekday, Hongkonger Lai Yee-man, 70, pulled weeds from a plot of leafy vegetables, shielding her face from the sun with a large white hat. But Lai was not on a typical farm; she was on the rooftop of a shopping centre in the middle of an urban neighbourhood in the city. “When…