Dakar : "Le patrimoine géologique est en danger", alerte le Dr Omar Baldé
Environmental geologist Omar Baldé is raising the alarm about a growing problem: the progressive degradation of Dakar's geological sites, veritable open-air laboratories for natural science students. "These spaces are not just places for walks; they constitute an essential field school," he insists.
Omar Baldé explains that on the West and East ledges, the geological outcrops used during educational excursions are threatened by urbanization, human activities and the effects of climate change.
At the Mamelles lighthouse, Mr. Baldé continues, the traces of volcanism, visible through the basalts and volcano-sedimentary deposits, are being weakened by the removal of rubble and hotel developments. "The iconic hill is gradually losing its scientific value," laments Dr. Baldé.
At Rebeuss beach, clay outcrops are disappearing under rubble, while informal practices such as burning electrical cables to extract copper are worsening pollution and destroying the environment.
On the Anse Bernard side, "it is coastal erosion that directly threatens the site," warns the geologist, environmentalist.
"The retreat of the coastline makes observing geological features difficult, especially at high tide," he continues.
Faced with these multiple pressures, Dr. Baldé is making an appeal. "Without appropriate protective measures, these sites risk disappearing or losing their scientific value."
He emphasizes the importance of preserving this heritage, which is simultaneously an environmental, educational, and scientific imperative. "Protecting these sites guarantees future generations the opportunity to learn, observe, and understand the geological history of Senegal."
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