Chapter 9: Spatial Inequality in Mexico City

Transcription

1 Chapter 9: Spatial Inequality in Mexico City 9.1 Introduction (141) Read section 9.1 and view the photos displayed on the overhead screen. Using the Venn diagram below, compare and contrast these two ways of life in Mexico City. Haves (Rich) Have Nots (Poor) Both 9.2 The Geographic Setting (142) Provide a list of at least five words/phrases that help describe the ancient Aztec city of Tenochtitlan between 1325 and Which European country conquered the Aztecs in 1519? 3. How did life in Mexico change after European colonization?

2 9.3 Rural Decline Causes Urban Migration (144) Rural Life Describe how Juan Ortiz and His family live in Central Mexico. Farmers Struggle Give three reasons what farmers are struggling in the countryside. 3. Migration to the City Give three pull factors that attract farmers and people from rural areas to the city 3. Define communal lands: Summarize in your own words, your understanding the graph above.

3 9.4 Urbanization Creates New Problems (145) City Life Describe how Julio Cu makes a living in Mexico City. What are the two main reasons for Mexico City s growth? Too Many People Give two problems in Mexico City caused by urbanization. Pollution, Poverty, and Crime Give three ways pollution has affected life in Mexico City. 3. What percent of Mexico s people lives in Mexico City? Where does much of Mexico City s growth occur? How does the Mexican government try to control the air pollution caused by cars?

4 9.5 The City of Haves and Have Nots (146147) Slum Life Describe life for Sylvia Martinez and others who live in the Mexico City s slums. Give examples of two types of jobs migrants to the city might find. Struggle to Survive Describe Mexico s class of working poor. What keeps them in poverty? The Haves live well Describe life for Mexico City s middle and upper class citizens. Define slums: Define tenements: Define Estates: What do you think causes spatial inequality in Mexico City?

5 Mexico City drastically reduced air pollutants since 1990s By AnneMarie O'Connor Washington Post Staff Writer Thursday, April 1, 2010 MEXICO CITY This megalopolis once had the world's worst air, with skies so poisonous that birds dropped dead in flight. Today, efforts to clean the smog are showing visible progress, revealing stunning views of snowcapped volcanoes and offering a model for the developing world. As Mexico prepares to host world leaders at a U.N. climatechange conference later this year, international experts are praising the country's progress. Many say its determined efforts to control auto emissions and other environmental effects of rapid urbanization offer practical lessons to cities in China, India and other fastgrowing countries. International officials say steady improvement of Mexico City's air could bolster President Felipe Calderón's bid for a leadership role among developing countries seeking to address global warming. "We have seen a lot of improvement. It is very clear," said Luiz Augusto Cassanha Galvao, a senior environmental officer at the PanAmerican Health Organization. "On a scale of one to 10, they were at 10, and now they're at five." Mexican officials have attacked the root causes of pollution that plagues many large urban centers with spiraling growth. They plan to further reduce vehicle emissions, which are the city's greatest source of pollution. Pemex, the state oil monopoly, plans to build a $9.3 billion plant to produce lowsulfur fuel. Mexico City Mayor Marcelo Ebrard is expanding the lowemissions Metrobus system, which has eliminated 80,000 tons of carbon monoxide annually since Officials plan to add hybrid buses. A suburban train system is to replace hundreds of thousands of vehicles. The potential payoff for such efforts is now in sight: Mexico City does not even rank among the top 10 polluted cities worldwide, said Walter Vergara, a leader of the climatechange team at the World Bank, which is aiding public transportation projects in Mexico. Mexico City appears to have cut most of its pollutants at least by half, said Miguel Naranjo, a Panama Citybased official of the U.N. Environment Program, while recent studies show a number of cities in China and India recording higher levels of the most serious pollutants. "They are having the same problems Mexico had in the past," Naranjo said. "They are growing faster than their capacity to adjust. They face a big challenge not to repeat the mistakes of Mexico." In 1992, the United Nations declared Mexico City the most polluted on the planet. High ozone levels were thought to cause 1,000 deaths and 35,000 hospitalizations a year. Thermal inversions held a toxic blanket of dirty air over a grimy city that seemed to embody the apocalyptic "Makesicko City" of the fiction of Mexican author Carlos Fuentes. Mexico was forced to act. It replaced the city's sootbelching old cars, removed lead from gasoline, embraced natural gas, expanded public transportation, and relocated refineries and factories.

6 Change was gradual, but the pace has quickened in recent years. The presence of lead in the air has dropped by 90 percent since Suspended particles pieces of dust, soot or chemicals that lodge in lungs and cause asthma, emphysema or cancer have been cut 70 percent. Carbon monoxide and other pollutants also have been drastically reduced. "It is no longer an emergency situation," said Raul Estrada, a spokesman for Greenpeace in Mexico, "though obviously, it is not 100 percent satisfactory." In March, the Mexico City Atmospheric Monitoring System, which has pollution sensors all over the city, began to measure additional chemicals, such as the highly toxic benzene, that are suspected to contribute to Mexico City's ozone problem. Ozone levels have dropped 75 percent since 1992, but they still exceeded international standards for a total of 530 hours last year. "You shouldn't even have one hour of high ozone levels in an entire year, and we have 530 hours," said Humberto Bravo Álvarez, one of Mexico's most respected air pollution experts. Bravo said corruption, such as people paying off emissions inspectors, has reduced the impact of the new controls. Had Mexico not taken action, "it would be living hell," said Exequiel Ezcurra, a former head of Mexico City's National Institute of Ecology who is now a professor at the University of California, Riverside. Ezcurra attributes much of the improvement to a requirement that Mexicobased auto manufacturers put catalytic converters on cars produced for the Mexican market. Now Mexico must require all diesel vehicles to be retrofitted with a filter that is the equivalent of a catalytic converter, he said. "If the government decides to do something about it, it can be done," said Nobel Prizewinning air quality expert Mario Molina. "There's really no excuse not to do more." Experts say Mexico must do more, simply to hold on to its progress in the face of uncontrolled growth. Cars have doubled to more than 4.2 million. New suburbs are endemic. Mexico City's geography adds to the problem; the city of more than 20 million is cradled in a 7,300foothigh bowl, surrounded by peaks higher than 17,000 feet that trap pollutants. But experts say many places overcame similar challenges. European cities, for example, halved pollution in recent decades by dramatically reducing coal fuel. "Simple measures that enormously reduce pollution are feasible, and they are not expensive," said Michal Krzyzanowski, an air quality adviser for the World Health Organization. "It is not the destiny of mankind to live in polluted cities."