Rapidly Urbanizing Populations Face Unique Challenges
New Worldwatch Institute report examines the growing rate of the global urban population and its social and health challenges
Ideas get bigger when you share them...
Visit: Worldwatch Institute
Washington, D.C. - December 11, 2012 (www.investorideas.com newswire) The world's urban population is expected to grow by 2.6 billion people between 2011 and 2050, bringing the total number of urbanites to 6.3 billion, according to new research conducted by the Worldwatch Institute for its Vital Signs Online service (www.worldwatch.org). This urban expansion will be especially burdensome for developing countries, where 82 percent of the world's population currently lives, writes report author Grant Potter.
Although the developing world is less urbanized than the industrial world in relative terms, developing countries are home to an estimated 1.54 billion more people. In absolute terms, the developing world is projected to add approximately 2.45 billion people to its cities by 2050, while the industrial world is due to add just 170 million.
Within the developing world, the vast majority of this urban growth is projected to occur in Asia and Africa . Asia far outstrips Africa in total population, with 4.2 billion people in 2011 compared with Africa 's 1 billion. But these regions are also the least urbanized areas on Earth: Asia's population was 45 percent urban in 2011, and Africa 's was only 40 percent urban. In Latin America and the Caribbean , by contrast, 78 percent of the regions' 599 million people live in cities.
A characteristic feature of Asian urbanization is the prevalence of "megacities" that are home to more than 10 million people. In 2011, there were 23 such cities worldwide, 13 of which were Asian. By 2025, the total number of megacities is expected to reach 37----with 21 in Asia alone. Southeast Asia is the most densely settled subregion in Asia, with approximately 16,500 people per square kilometer (compared with only 4,345 people per square kilometer in Europe in 2000).
Cities, especially in the developing world, must find a way to provide essential services to their ever-increasing populations. When cities fail to meet these essential needs on a large scale, they create areas known as slums, where households typically lack safe drinking water, safe sanitation, a durable living space, or security of a lease. According to UN HABITAT, 828 million people in developing-world cities are considered slum dwellers----one in every three residents. Slum populations are expected to grow significantly in the future, and UN HABITAT projects that 6 million more people live in slums every year.
The World Health Organization identifies the rapid increase of urban populations, especially slum populations, as the most important issue affecting health in the 21st century. The agency cites overcrowding, lack of safe water, and improper sanitation systems as the primary factors contributing to poor health among the urban poor. Slums often become breeding grounds for diseases like tuberculosis, dengue, pneumonia, and cholera, and slum dwellers contract water-borne or respiratory illnesses at much higher rates than people in rural areas do.
Cities and their slums will continue to grow as long as rural populations continue to migrate to cities to find economic and other opportunities, such as access to cultural amenities, education, and health care.
Further highlights from the report:
- Census data in 2010 indicate that cities are home to 3.5 billion people, or 50.5 percent of the global population.
- The UN Population Division projects that between 2011 and 2050, the world's population will increase by 2.3 billion people, bringing the total population to 9.3 billion.
- The industrialized world has little room to urbanize further: it was 78 percent urban in 2011, and by 2050 it is expected to be approximately 86 percent urban. By comparison, the developing world was only 47 percent urban in 2011, a share that could reach 64 percent by 2050.
About the Worldwatch Institute:
Worldwatch is an independent research organization based in Washington , D.C. that works on energy, resource, and environmental issues. The Institute's State of the World report is published annually in more than 18 languages. For more information, visit www.worldwatch.org.
This news is published on the Investorideas.com Newswire and its syndicated partner network
Get free news alerts:
Sign up here
Published at the Investorideas.com Newswire - Big ideas for Global Investors
Disclaimer/ Disclosure:The Investorideas.com newswire is a third party publisher of news as well as creates original content as a news source. Original content created by investor ideas is protected by copyright laws other than syndication rights. Investorideas is a news source on Google news and global syndication partners. Our site does not make recommendations for purchases or sale of stocks or products. Nothing on our sites should be construed as an offer or solicitation to buy or sell products or securities. All investment involves risk and possible loss of investment. This site is currently compensated by featured companies, news submissions and advertising. Contact each company directly for press release questions. Disclosure is posted on each release if required but otherwise the news was not compensated for and is published for the sole interest of our readers.
BC Residents and Investor Disclaimer: Effective September 15 2008 - all BC investors should review all OTC and Pink sheet listed companies for adherence in new disclosure filings and filing appropriate documents with Sedar. Read for more info: http://www.bcsc.bc.ca/release.aspx?id=6894. Global investors must adhere to regulations of each country.