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In page Mediterranean Sea:

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Tourism is a significant source of income for several Mediterranean countries, including small coastal communities and islands independent of urban centres, despite geopolitical conflicts in the region.[citation needed] However, tourism has also played a major role in the degradation of the coastal and marine environment. Rapid development has been encouraged by Mediterranean governments to support the large numbers of tourists visiting the region, but this has caused serious disturbance to marine habitats by erosion [3] and pollution in many places along the Mediterranean coasts.