From VOA Learning English, this is the Economics Report.
The United Nations is warning that the world is not prepared to deal with the fast growth of cities. The World Economic and Social Survey 2013 calls for new ways to meet the needs of city populations. More than 6.5 billion people are expected to be living in cities by 2050.
Most new city dwellers will be in developing countries. The United Nations says the effect on limited resources in many countries will be huge. The World Economic and Social Survey points to the increasing demand for energy, water, sanitation, public services, education and health care.
The world population is expected to rise to more than nine billion by 2050, two-thirds of all people are expected to live in cities. The United Nations says about 80 percent of this growing urban population will be found in Africa and Asia.
The report says sustainable development of urban areas requires coordination and investments to deal with important issues, these include land-use, food security, job creation and transportation.
Willem Van Der Geest is with the United Nations Department of Economic and Social Affairs, he says cities need to work closely with rural communities, so that food supplies can be secured, and the environment can be protected.
Willem Van Der Geest就职于联合国经济和社会事务部，他说城市需要与农村地区紧密合作，以确保食物供应并保护环境。
"We need sufficient integration with cities... An integration between the rural and urban economies is absolutely vital for issues of nutrition, food security, and environmental sustainability."
The report says development in a sustainable way is important to ending poverty. The report also examines the problem of food insecurity, which affects hundreds of millions of people around the world. One in eight people are still chronically undernourished.
UN officials says somethings are clear. The Assistant Secretary-General for Economic Development, Shamshad Akhtar, says world food production will have to increase by 70%, that increase will be needed to feed the additional 2.3 billion people expected on the planet by the middle of the century. She says an important part of meeting that need is to waste less food.
"There has to be efforts to reduce food wastage. Changes will have to take place in the food chain-production, storage, transportation and consumption."
Food and nutrition security are core elements of the sustainable development agenda.
And that's the Economics Report from VOA Learning English, I'm Mario Ritter.
1.city dweller 城市居民
City dwellers think country folk have provincial attitudes.
2.sanitation n. [医] 环境卫生；卫生设备；下水道设施
The location is exceptionally poor, viewed from the sanitation point.
3.undernourished adj. 营养不良的，营养不足的
One morning we came upon an abandoned undernourished puppy on the porch.
4.chronically adv. 长期地；慢性地；习惯性地
The Middle East, North Africa and South Asia are chronically short of water.