In addition to the consensus of scientists, environmental experts, fisheries and beach research in Egypt about the pollution of the northern lakes in the Egyptian delta and the collapse of its ecosystem as a result of using these lakes as a permanent drain for agricultural, health and industrial wastewater - untreated - for the delta governorates surrounding the lakes - the continuous drying processes in the Manzala lakes Burullus, Mariout and Idku, which the government undertakes on the one hand, and individuals on the other hand, have caused a change in the morphology of the lakes and a reduction in their areas, ranging between 46% and 83% of their original areas. Drying and filling works are still going on for these lakes, without taking into account the new climatic conditions that have hit the world, which in turn will lead to a rise in the global sea level (MGSL) during this century by an amount that may reach a maximum of one meter. This will result in the invasion of all the northern lakes of the Nile Delta, in addition to the surrounding dry low plains along the northern coast of the delta, and then the invasion of all the areas that were previously deducted and drained from the lakes with their urban, agricultural and industrial projects, as well as the remaining submerged areas of these lakes, which in turn will lose their characteristics to become part of the Mediterranean. This study aims to determine the quantitative and qualitative size of the certain risks that will face the northern lakes and the plains surrounding them in the Nile delta as a result of the global rise in sea level during this century, the coastal threat sources and the traditional defensive policies that must be followed to avoid all these risks.
Climate Change, Nile Delta, Lake Manzala, Lake Burullus, Lake Mariout, Lake Idku
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