Abstract
The perception that the mostly cliff-lined Peruvian coast would escape any problems caused by a rise in sea level has changed. It is now thought that an increase in sea level caused by global warming could affect almost 30% of Peru’s coastline. Some cities like Puerto Pizarro, Chimbote, Pisco, and Ilo could be in danger of flooding. In addition, almost 6 million people traveling to the coastline to enjoy the many summer resorts and recreational areas would be affected. No measures to adapt to the sea level rise have yet been taken because only limited information is available about global climatic change and the consequences of these changes. Some protection measures against marine erosion have been developed along the Lima coast, such as the breakwaters and groins to defend La Punta, a small city of 6,000 inhabitants that is 1.5 m above sea level. In addition, groins constructed at right angles to the coastline allow for the expansion of beaches along the Costa Verde.
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