In order to cope with the threat of sea level rise caused by global warming to the city, Alexandria, a Mediterranean coastal city in Egypt, has placed large-scale concrete wave protection components in the offshore and coastal areas to build a coastal protection barrier to deal with the possible threat caused by climate change. (this is the concrete wave protection component placed offshore, photographed in Alexandria, Egypt, on June 19.) (this is the concrete wave protection component placed offshore, photographed in Alexandria, Egypt, on June 19.) (this is the concrete wave protection component placed offshore, photographed in Alexandria, Egypt, on June 19.) (this is the concrete wave protection component placed offshore, photographed in Alexandria, Egypt, on June 19.) (this is the concrete wave protection component placed offshore, photographed in Alexandria, Egypt, on June 19.) (on June 19, in Alexandria, Egypt, a boy fished at a seaside where concrete wave protection components were placed.) (on June 19, in Alexandria, Egypt, people fished at a seaside where concrete wave protection components were placed.) (Xinhua News Agency)