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The floodplain surrounding the city of Beira, in central Mozambique, after Cyclone Idai, March 20, 2019. ADRIEN BARBIER / AFP

Stockholm is organizing until August 30 International Water Week. This annual forum, the largest of its kind, has notably received the mayor of Beira, a coastal city in Mozambique almost completely destroyed by a cyclone last March. This country, generally a victim of long droughts, was then under water. A situation brought to be repeated.

With our correspondent in Stockholm, Frédéric Faux

Daviz Simango, the mayor of Beira, is still marked by the unprecedented disaster that has hit his city . He went to Stockholm to redo donors and NGOs.

" We are used to working hard against the consequences of climate change such as floods and the rising sea," says Daviz Simango. Everything must be done to reduce the risk of water in the city. But this time, we had wind in addition, at 240 km / h, a first in Southern Africa. "

But in Stockholm, the mayor of Beira is far from the only representative of populations affected by climate change. A phenomenon that accelerates the water cycle, and multiplies extreme events.

" Climate change is flooding, and droughts are increasing around the world," says Torgny Holmgren, director of the Stockholm International Water Institute. Water is a problem, but also a solution for the future. In Africa, we will have to feed an increasing population, which will reach 4 billion inhabitants in a century. How to do it ? Taking advantage of rainwater, which can be stored in farms or villages. Control the water, and you have solutions to control climate change. "

In 2015, the United Nations set a goal for 2030 for everyone to have access to a water and sanitation service. What is still missing to more than two billion people around the world.

To read also: Water shortage: a quarter of humanity is close to " zero day "