Sea level is measured by two main methods: tide gauges and satellite altimeters. For example, women in coastal areas may have unmet need for family planning — that is, they may want to limit or space their future births but may not be using contraceptives.35 Helping women reach their family planning goals can protect the environment by limiting population growth, but addressing family planning needs must be coordinated with several sectors, particularly the health sector. 7 Up to 50 percent of the population in northern Africa and Bangladesh lives in coastal areas; along the Nile Delta, the population density reaches 500 to 1,000 people per square kilometer. Using data from scores of stations around the world, scientists can calculate a global average and adjust it for seasonal differences. Kenya, Liberia, the Philippines, and Puerto Rico, have lost over 70 percent of their mangroves.14. This activity targets the following skills: The resources are also available at the top of the page. The challenge for policymakers and coastal resource managers is to figure out how to reap the economic benefits of coastal resources while preserving them for future generations. Heavy population pressure on the coasts is causing more and more of the natural environment to be paved over or converted into ports, tourist beaches, and new communities. because many populated areas are located near the coasts. By 2025, that figure is likely to double. The population of the United States reached 300 million on October 17, 2006, said the U.S. Census Bureau. When you reach out to him or her, you will need the page title, URL, and the date you accessed the resource. For example, Monaco, a principality located on France’s Mediterranean coast, is 2.02 square kilometers in size and has around 26,000 people per square kilometer. Phone: +254 735 084293 Reasons for densely and sparsely populated areas. In this 6 regions across India have been identified for measurements of population density. 4. Privacy Notice |  If no button appears, you cannot download or save the media. At the same time, they are more densely populated than the hinterland and exhibit higher rates of population growth and urbanisation. Managing population pressures in coastal zones is difficult because those regions encompass many physical, social, and regulatory divisions. For all these regions, therefore, the question of how fast the sea level will … 3362 days since Next Geography Class!!! Bathing in or ingesting sewage-contaminated water can cause infections and transmit diseases such as cholera, particularly among children under 5.22 In developing countries, more than 90 percent of wastewater and 70 percent of industrial wastes are discharged in coastal waters without being treated. This work has been funded by the U.S. Agency for International Development (USAID) under the MEASURE Communication project (HRN-A-00-98-000001-00). Rainera L. Luero and Robert Layng, “Understanding Reproductive Health/Natural Resource Management Integration in the Philippines,”. Many coastal areas are densely populated, but a large expanse of coastal areas are hardly populated at all. Marine fisheries and aquaculture (the controlled cultivation and harvesting of freshwater and marine organisms) produce close to 100 million tons of fish, shellfish, and edible plants every year, providing a livelihood for about 35 million people, most of whom live in developing countries.18 Overharvesting to meet global consumers’ growing demand for seafood can deplete many species and alter the biological structure of coastal ecosystems. In fact, 14 of the world’s 17 largest cities are located along coasts. Once they understood that population pressures were increasing sedimentation along the coast and threatening corals and fish, community members began reforestation projects on the coasts and inland and began to encourage the use of family planning services. Several strategies can be used to incorporate population and gender dynamics in planning project activities: In the Philippines, for example, projects have used a combination of these models to build links across sectors. American Association for the Advancement of Science (AAAS), “Mangroves and Estuaries” (2000), accessed online at http://atlas.aaas.org/index.php?part=2&sec=eco&sub=mangroves, on Aug. 15, 2003. Chemicals and heavy metals found in pesticide runoff and industrial effluents also damage human and marine health. CARICOMP is one example of a functioning international program for monitoring the coastal marine environment and can be used as a model for other countries or regions.38. Migration is a key factor affecting coastal zones. Many of the world’s coasts are becoming increasingly urban. Population density is a ratio of the average number of inhabitants per square kilometre. 2. This is a concern because population growth and the activities associated with it can degrade coastal and marine ecosystems.3 A number of worrying trends are already visible. But the combined effects of booming population growth and economic and technological development are threatening the ecosystems that provide these economic benefits. This activity is made possible by a generous grant from the National Oceanic and Atmospheric Administration (NOAA) National Marine Sanctuary Program. Since the early 1990s, sea level has been measured from space using radar altimeters, which determine the height of the sea surface by me… Moreover, the ships provide few long-term economic benefits for the local population, since they do not employ many local citizens. Geography, Human Geography, Physical Geography. Display for students the United States on the NG Education interactive map, with the population density layer selected. Breaking the marine food chain reduces vital supplies of protein for about 1 billion people, most of whom live in developing countries.27, Yet restricting fishing rights and access to coastal waters in order to project marine fauna may harm vulnerable groups of people. If needed, have students explain what their drawings show. Consequently, many coastal nations have experienced rapid uncontrolled development along their coastlines. This information is targeted to those who influence policy, such as policymakers and their advisers, the media, and nongovernmental organizations. 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