Efforts to clean up the Jukskei River are to be applauded but fall far short of what's really needed to return it to the former glory so many Johannesburg residents still remember writes LELYZAVETA IVANOVA
Although flowing water is fundamental to river ecosystems, temporary streams are distinctive landscape features that support surprisingly diverse communities, writes Rachel Stubbington. However, the biodiversity of these dynamic ecosystems needs greater recognition and protection.
The Mekong is among Southeast Asia's greatest rivers, sustaining tens of millions from its abundant fisheries and its floodwaters which both irrigate and fertilise. But as Tom Fawthrop reports, Nature's bounty, and beauty, are at risk from a series of 11 dams.
Chinese mitten crabs are pushing indigenous species out of UK rivers and damaging river banks and habitats. It's time to look at how we could control them, and maybe find a new seafood delicacy to boot
Costing over $1 billion, the Karahnjukar hydroelectric dam in Iceland is a hugely controversial project. Mark Lynas journeyed to the blasting face, hoping to work out for himself whether this industrial elephant is green or brilliant-white.