Workers tunnelling through mountains and redirecting rivers, powering and irrigating the nation. We think of the Snowy scheme as a successful nationbuilding project – but it wasn’t always that way
Lesotho’s Katse Dam, which forms part of the Lesotho Highlands Water Project, with underground tunnels carrying this water to South Africa.
Walter Dhladhla/AFP/Getty Images
The tunnel bringing millions of litres of water from dams in Lesotho to South Africa is to undergo a six-month repair. This could leave residents of Gauteng in South Africa short of water.
Tyhume Valley in Eastern Cape, South Africa.
Wonga Masiza
Satellite images and community perceptions combine to give a fuller picture of land use changes.
The Supreme Court of Canada ordered the federal government back to the drawing board on its Impact Assessment Act. But the legislation got a lot of things right in an era of climate change and related issues.
THE CANADIAN PRESS/Sean Kilpatrick
The Supreme Court of Canada has ruled that the federal Impact Assessment Act needs amendments for Constitutional compliance, but the court’s recommended approach is no longer viable.
Founded in 1959, the membership group Trout Unlimited has changed the culture of fly-fishing and mobilized members to support conservation. Could its approach work for other social problems?
A beaver-like dam at Wilde Brook on the Corve catchment in Shropshire.
Daniel Jones
The largest dam removal project is moving forward on the Klamath River in California and Oregon. Tribal nations there have fought for decades to protect native fish runs and the ecology of the river.
The destruction of the dam has caused massive flooding of nearby villages and in Kherson.
Nicolas Cleuet/Le Pictorium/Alamy
Russia and Ukraine have blamed each other for the attack on crucial civilian infrastructure. Experts explain what the incident means for future war plans, and for the safety of the affected region.
Forecasting, risk plans and effective drainage systems can mitigate the impact of severe floods.
Photo by Pius Utomi Ekpei/AFP via Getty Images.
Getty Images
Two decades of drought have reduced the river’s flow by one-third compared to historical averages. The Biden administration is considering mandatory cuts to some states’ water allocations.
Establishing the financial worth of a river’s fish is complicated when many people don’t sell the fish they catch.
Tang Chhin Sothy/AFP via Getty Images
Putting a dollar value on nature has staunch opponents who say it’s morally wrong, but without it, building dams and other infrastructure can run roughshod over vital ecosystems.
Fires are often set to clear land near roads in the Amazon.
Johannes Myburgh / AFP via Getty Images
Nearly 95% of deforestation in the Amazon occurs within 3.5 miles of a road or near a river. Brazil’s plans to ramp up exports may be on a collision course with the forest.