Climate
The remarkable power of Australian kelp
re than 45,000 years ago, by the shore of present-day Tasmania, a local person picked up a large piece of thick, dark brown seaweed. Its impervious tissue and resilient flexibility sparked an idea, and they realised that this giant piece of seaweed could solve one of the day's nagging problems. The piece of kelp was fashioned into a small rubbery bag, its edges perforated with a stick to give it structure, and plant fibres twisted around the stick to make a handle. From then on, the kelp was used as a versatile water carrier.
By Gu Wei Di Qi3 years ago in Earth
Why Peru is reviving a pre-Incan technology for water
Pre-pandemic, in the austral winter, I drove north out of Lima, up into Peru's highlands to the village of Huamantanga (wa-mon-TONG-a). I was traveling with scientists who were studying local farmers' use of a 1,400-year-old technique to extend water availability into the long dry season.
By Gu Wei Di Qi3 years ago in Earth











