Victoria Falls, on the border of Zimbabwe and Zambia, has slowed down to a trickle after an unprecedented decline in water levels, officials have said. Data from the Zambezi River authority showed water flow at its lowest since 1995, and well under the long-term average.

The Zambian president, Edgar Lungu, said it was a stark reminder of what climate change is doing to the environment, yet some scientists are cautious about categorically blaming the climate crisis. Harald Kling, a hydrologist at engineering firm Pöyry and a Zambezi River expert, said climate science dealt in decades, not particular years, 'so it’s sometimes difficult to say: this is because of climate change because droughts have always occurred'