Sunday, October 31, 2010
Earthlings -- watch online
Who Killed the Electric Car? --watch online
Wednesday, October 27, 2010
Trash Timeline
| 10000 BC | Garbage becomes an issue as people first begin to establish permanent settlements |
| 400 BC | The first municipal dump is established in ancient Athens |
| 200 | The first sanitation force is created by the Romans. Teams of two men walk along the streets, pick up garbage and throw it in a wagon. |
| 1388 | The English Parliament bans dumping of waste in ditches and public waterways. |
| 1551 | The first recorded use of packaging: German papermaker Andreas Bernhart begins placing his paper in wrappers labeled with his name and address. |
| 1657 | New Amsterdam (now Manhattan) passes a law against casting waste in the streets. |
| 1690 | The Rittenhouse Mill, America's first paper mill, opens in Philadelphia making paper from recycled cotton and linen as well as used paper. |
| 1710 | Colonists in Virginia commonly bury their trash. Holes are filled with building debris, broken glass or ceramic objects, oyster shells and animal bones. They also throw away hundreds of suits of armor that were sent to protect colonists from arrows of native inhabitants. |
| 1776 | The first metal recycling in America occurs when patriots in New York City melt down a statue of King George III and make it into bullets. |
| 1792 | Benjamin Franklin uses slaves to carry Philadelphia's waste downstream. |
| 1800 | Pigs loose in city streets throughout the country eat garbage and leave their own wastes behind. |
| 1800 | Visitors describe New York City as a "nasal disaster, where some streets smell like bad eggs dissolved in ammonia." |
| 1810 | The tin can is patented in London by Peter Durand. |
| 1834 | Charleston, West Virginia, enacts a law protecting vultures from hunters. The birds help eat the city's garbage. |
| 1850 | Junk dealers in Reno, Nevada scavenge personal belongings from the Oregon, Santa Fe and California trails. Pioneers abandoned the items on the long trek west. |
| 1860 | American newspapers are now printed on paper made from wood pulp fibers rather than rags. |
| 1860 | Residents of Washington, D.C. dump garbage and slop into alleys and streets, pigs roam freely, slaughterhouses spew nauseating fumes and rats and cockroaches infest most dwellings including the White House. |
| 1866 | New York City's Metropolitan Board of Health declares war on garbage, forbidding the "throwing of dead animals, garbage or ashes into the streets. |
| 1868 | Brothers I.S. and John Hyatt successfully manufacture "celluloid," the first commercial synthetic plastic. It replaces wood, ivory, metal and linen in such items as combs, billiard balls, eyeglasses and shirt collars. |
| 1869 | The first commercial plastic, called celluloid, was developed by an entrepreneurial maker of dental plates and novelty items. He had answered an ad placed by a supplier of billiards equipment offering a reward for developing a suitable replacement material for elephant ivory to make billiard balls |
| 1872 | New York City stops dumping its garbage from a platform built over the East River. |
| 1874 | The organized incineration of collected trash begins in Nottingham, England. |
| 1879 | Frank Woolworth opens the first five and dime store in Utica, New York. He pioneers the idea of displaying goods on open counters so customers can see and feel merchandise (a practice that later makes larger, theft proof packaging necessary). |
| 1879 | "Thither were brought the dead dogs and cats, the kitchen garbage and the like, and duly dumped. This festering, rotten mess were picked over by rag pickers and wallowed over by pigs, pigs and humans contesting for a living from it, and as the heaps increased, the odors increased also, and the mass lay corrupting under a tropical sun, dispersing the pestilential fumes where the winds carried them." - Minister describing the New Orleans dump to the American Public Health Association. |
| 1880 | Many Americans still believe that diseases such as typhoid fever are caused by "miasma" or gases coming from garbage and sewers. |
| 1880 | New York City scavengers remove 15,000 horse carcasses from the streets. |
| 1885 | The first garbage incinerator in the U.S. is built on Governors Island in New York Harbor. |
| 1885-1908 | 180 garbage incinerators are built in the United States. |
| 1889 | "Appropriate places for (refuse) are becoming scarcer year by year, and the question as to some other method of disposal…must soon confront us. Already the inhabitants in proximity to the public dumps are beginning to complain." - Health Officer's report, Washington, D.C. |
| 1892 | Beer bottles now sport a metal cap to prevent spoilage. |
| 1893 | "The means resorted to by a large number of citizens to get rid of their garbage and avoid paying for its collection would be very amusing were it not such a menace to public health. Some burn it, while others wrap it up in paper and carry it on their way to work and drop it when unobserved, or throw it into vacant lots or into the river." - Boston Sanitary Committee |
| 1894 | The citizens of Alexandria, Virginia are disgusted by the sight of barge loads of garbage floating down the Potomac River from Washington, D.C. They take to sinking the barges upriver from their community. |
| 1895 | King C. Gillette, a traveling salesman, invents a razor with disposable blades. |
| 1896 | Chicago's City Council records its concern for the death rate in the 19th Ward, which has eight miles of unpaved roads that can't be swept, roads "polluted to the last degree with trampled garbage, excreta and other vegetables and animal refuse of the vilest description." |
| 1897 | The first recycling center is established in New York City. |
| 1898 | Colonel George Waring, New York's Street Cleaning Commissioner, organizes the country's first rubbish sorting plant for recycling. |
| 1899 | The federal Rivers and Harbors Act restricts dumping in navigable rivers, to keep them open for shipping. |
| 1900 | American cities begin to estimate and record collected wastes. According to one estimate, each American produces annually: 80 - 100 pounds of food waste; 50 - 100 pounds of rubbish; 300 - 1,200 pounds of wood or coal ash - up to 1,400 pounds per person. |
| 1900 | Greater acceptance of the germ theory of disease begins to shift the job of garbage removal from health departments to public works departments. Health officers, it is felt, should spend their time battling infectious diseases, not cleaning up "public nuisances" such as garbage. |
| 1900 | Hills Brothers Coffee in San Francisco puts the first vacuum-packed coffee on the market. |
| 1900 | Small and medium sized towns build piggeries, where swine are fed fresh or cooked garbage. One expert estimates that 75 pigs can eat one ton of refuse per day. |
| 1900 | There are over 3 million horses working in American cities, each producing over 20 pounds of manure and gallons of urine per day, most of which is left on the streets. |
| 1902 | A survey of 161 cities by the Massachusetts Institute of Technology finds that 79% of them provide regular collection of refuse. |
| 1903 | Corrugated paperboard containers are now used commercially. |
| 1904 | Large-scale aluminum recycling begins in Chicago and Cleveland. |
| 1904 | Montgomery Ward mails out 3 million catalogues weighing four pounds each. |
| 1904 | Postmaster General Henry Clay Payne authorizes permit mail. This means that with a single fee, 2,000 or more pieces of third or fourth class mail can be posted without stamps. This opens the door for direct mail advertising and mass solicitations. |
| 1905 | New York City begins using a garbage incinerator to generate electricity to light the Williamsburg Bridge. |
| 1907 | An unexpectedly thick run of toilet paper is converted to become the first paper towels. |
| 1908 | paper cups replace tin cups at water vending machines on trains and in public buildings. |
| 1909 | 102 of 180 incinerators built since 1885 are abandoned or dismantled. Many had been inadequately built or run. Also, American's abundant land and widely spaced population made dumping garage cheaper and more practical. |
| 1909 | Kraft paper pulp first made in the United States, a process developed in Germany in 1883. |
| 1910 | City beautification programs become more and more popular. Many cities have juvenile sanitation leagues whose members promise to help keep streets and neighborhoods clean. Sanitation works wear white uniforms, reminiscent of other public workers such as doctors and nurses. |
| 1912 | Cellophane (clear plastic) is invented by Swiss chemist Dr. Jacques Brandenberger, which encourages the use of plastic packaging. |
| 1914 | W.K. Kellogg invents a wax paper wrapper for Corn Flakes boxes. |
| 1915 | The National Clean-Up and Paint-Up bureau sponsors 5,000 local clean-up campaigns. |
| 1916 | Dr. Thomas Jasperson obtains a patent for making paper from de-inked wastepaper. |
| 1916 | Major cities estimate that of the 1,000 to 1,750 pounds of waste generated by each person per year, 80% is coal and wood ash. |
| 1916 | Waxed paper is commonly used to wrap bread. |
| 1917 | Shortages of raw materials during World War I prompt the federal government to start the Waste Reclamation Service, part of the War Industries Board. Its motto is "Don't Waste Waste - Save it." Every article of waste is considered valuable for industry. |
| 1920 | During this decade, "reclaiming" or filling wetlands near cities with garbage, ash and dirt becomes a popular disposal method. |
| 1920 | The first commercial radio broadcast. The technology held far reaching implications for advertising and purchasing. Americans buy 1.5 million radios within the year. |
| 1924 | The Kleenex facial tissue is introduced. |
| 1926 | Clarence Saunders opens the first supermarket. Pre-packaged food and self service packaging increases selection for consumers and lowers the cost of food. |
| 1928 | Cellophane is invented by the DuPont Cellophane Company. The transparent material is used as a protective wrapping for food and other products. |
| 1928 | Teleprinters and teletypewriters come into use. |
| 1929 | Aluminum foil is invented. |
| 1930 | A new plastic, polyvinyl chloride, is patented by B.F. Goodrich. It is used as a replacement for rubber, as protection against corrosion and for adhesives. |
| 1930 | Another plastic, polystyrene, is put on the market by a German firm, I.G. Farben, and also produced by Dow Chemical Company. The hard, shiny material is molded into tackle boxes, refrigerator linings and other items. |
| 1930 | Kimberly Clark develops disposable sanitary pads. |
| 1932 | The development of compactor garbage trucks increases vehicle capacity. |
| 1933 | Communities on the New Jersey shore obtain a court order forcing New York City to stop dumping garbage in the Atlantic Ocean. On July 1, 1934, the Supreme Court upholds the lower court action, but applies it only to municipal waste, not commercial or industrial wastes. |
| 1935 | Rohm and Haas invents Plexiglass, a clear plastic used in headlights, lenses, windows, clocks and jewelry. |
| 1935 | General Electric begins producing and marketing a garbage "Disposal." |
| 1935 | The first beer can is produced by Kreuger's Cream Ale in Richmond, VA. Over the next six months, company sales increased 550% because customers loved the convenience. |
| 1936 | Milk products are now commonly sold in paper packaging. |
| 1937 | The DuPont Company patents nylon, the world's first synthetic fiber. Its strength, resistance to moisture and mildew, and good recovery after stretching lead to its use in stockings, electrical parts, power tools and car accessories. |
| 1939 | Coal and wood ash make up 43% of New York City's refuse, down from 80% in 1916. |
| 1939 | Paperback books are introduced, selling for 25 cents. |
| 1939 | Wisconsin Select beer is sold in no deposit, no return bottles to compete with the recent introduction of beer in no return cans. |
| 1939 | Birds Eye introduces the first pre-cooked frozen foods - chicken fricassee and criss cross steak. |
| 1940 | Japanese conquests in Southeast Asia cut of America's supply of tin, hampering canned food production. |
| 1941 | America enters World War II. Rationing of such materials as wood and metal forces an increased reliance on synthetic materials such as plastics. Low-density polyethylene film, developed during wartime, replaces cellophane as the favorite food wrap by 1960. |
| 1942 | Americans collect rubber, paper, glass, metals and fats to help the war effort. Paper collections are so successful they overwhelm the markets by the spring of 1942. |
| 1942 | Methods and materials for wartime shipment of food make World War II "the great divide" in the packaging and storage industry. |
| 1943 | The aerosol can is invented by two researchers at the U.S. Department of Agriculture. |
| 1944 | Styrofoam is invented by Dow Chemical Co. |
| 1945 | The first American ballpoint pens go on sale for $12.50 each at Gimbel's in New York. |
| 1946 | Fortune Magazine heralds the arrival of the "dream era…The Great American Boom is on." |
| 1947 | "Our willingness to part with something before it is completely worn out is a phenomenon noticeable in no other society in history…It is soundly based on our economy of abundance. It must be further nurtured even through it runs contrary to one of the oldest inbred laws of humanity, the law of thrift." - J. Gordon Lippincott, industrial designer |
| 1948 | American Public Health Association predicts that the garbage disposal will cause the garbage can to "ultimately follow the privy" and become an "anachronism." |
| 1948 | Fresh Kills landfill is opened in Staten Island, New York. It later becomes the world's largest city dump. Fresh Kills and the Great Wall of China are the only man-made objects visible from space. |
| 1950 | A second hydraulic system to eject garbage is added to garbage trucks. |
| 1950 | An improved paper cup for hot beverages is introduced. It is lined with polyethylene instead of wax. |
| 1950 | The growth of convenience foods (frozen, canned, dried, boxed, etc) increases the amounts and changes the types of packaging thrown away. |
| 1953 | The American economy's "ultimate purpose is to produce more consumer goods." - Chairman of President Eisenhower's Council of Economic Advisors. |
| 1953 | Swanson introduces the first successful TV dinner: turkey, mashed potatoes and peas. |
| 1954 | "Never underestimate the buying power of a child under seven. He has brand loyalty and the determination to see that his parents purchase the products of his choice." - Dr. Frances Horwitch ("Miss Frances" of TV's Ding Dong School) at Chicago advertising conference. |
| 1957 | High-density polyethylene (HDPE) is developed by Standard Oil of Indiana and Phillips Petroleum (now used for milk containers.) |
| 1958 | The Bic Crystal Company introduces the throwaway pen. |
| 1959 | Philadelphia closes its reduction plant (a facility for turning organic wastes into fats, grease and oils) the last one in the country. |
| 1959 | The American Society of Civil Engineers publishes a standard guide to sanitary landfilling. To guard against rodents and odors, it suggests compacting the refuse and covering it with a layer of soil each day. |
| 1959 | The first photocopier, the Xerox 914, is introduced - 22 years after it was patented. |
| 1960 | Bead molded polystyrene cups are introduced. They provide better insulation for hot drinks. |
| 1960 | Bread is sold bagged in polyethylene rather than wrapped in waxed paper. |
| 1960 | Easy open tops (pop tops) for beverage cans are invented. Iron City Beer in Pittsburgh is the first to try the invention and sales increase immediately. |
| 1960 | The first disposable razors are sold. |
| 1961 | Sam Yorty runs successfully for mayor of Los Angeles on a platform to end the inconvenience of separating refuse. A city ordinance eliminates the sorting of recyclables. |
| 1963 | The aluminum can for beverages is developed. |
| 1965 | The Federal Government realizes that garbage has become a major problem and enacts the Solid Waste Disposal Act. This calls for the nation to find better ways of dealing with trash. |
| 1968 | President Lyndon Johnson commissions the National Survey of Community Solid Waste Practices, which provides the first comprehensive data on solid waste since cities began to record amounts and types of waste in the early 1900s. |
| 1968 | The U.S. aluminum industry begins recycling discarded aluminum products, from beverage cans to window blinds. |
| 1969 | Seattle, Washington institutes a new fee structure for garbage pick up. Residents pay a base rate for one to four cans and an additional fee for each additional bundle or can. |
| 1970 | The Federal Clean Air Act enacted. New regulations lead to incineration shut downs. |
| 1970 | The first Earth Day. Millions of people rally nationwide on April 22. |
| 1970 | United States Environmental Protection Agency is created. |
| 1971 | Oregon passes the nation's first bottle bill. By offering cash for aluminum, glass and plastic containers, it removes about 7% of its garbage from the waste stream. |
| 1972 | According to William Ruckelshaus, head of EPA, solid waste management is a "fundamental ecological issue. It illustrates, perhaps more clearly than any other environmental problem, that we must change many of our traditional attitudes and habits." |
| 1972 | The Federal Clean Water Act is enacted to restore and maintain the chemical, physical and biological integrity of the nation's waters. |
| 1972 | The first buy-back centers for recyclables are opened in Washington State. They accept beer bottles, aluminum cans and newspapers. |
| 1974 | The first city-wide use of curbside recycling bins occurs in University City, Missouri for collecting newspapers. |
| 1975 | "That happiness is to be attained through limitless material acquisition is denied by every religion and philosophy known to humankind, but is preached incessantly by every American television set." - Robert Bellah, The Broken Covenant. |
| 1976 | The Resource Conservation and Recovery Act creates the first significant role for federal government in waste management. It emphasizes recycling and conservation of energy. |
| 1976 | The Resource Conservation and Recovery Act is passed, which requires all dumps to be replaced with "sanitary landfills." The enforcement of this act will increase the cost of landfill disposal, and that will make resource-conserving options like recycling more appealing. |
| 1976 | The Toxic Substances Control Act is passed. Before this and the Resource Conservation and Recovery Act went into effect, any individual or business could legally dump any kind and amount of hazardous chemicals in landfills. |
| 1976 | Three people from Bartlesville, Oklahoma get a patent on a method for purifying and reusing lubricating oils. |
| 1977 | Polyethylene terephthalate (PET) soda bottles are introduced to replace glass bottles. The plastic was first developed in England in 1941. |
| 1978 | The Supreme Court rules that garbage is protected by the Interstate Commerce Clause; therefore, one state cannot ban shipments of waste from another. |
| 1979 | EPA issues landfill criteria that prohibit open dumping. |
| 1980 | Polypropylene is introduced and used for butter and margarine tubs and for drinking straws. |
| 1983 | The space shuttle is pulled out of service to replace a window that had been severely pitted by a chip of paint from space junk. |
| 1984 | During the Olympic Games in Los Angeles, athletes, trainers, coaches and spectators produce 6.5 million pounds of trash in 22 days, more than six pounds per person per day. |
| 1984 | Hazardous and Solid Waste Act amendments and reauthorization to the Resource Conservation and Recovery Act require tougher federal regulation of landfills. |
| 1986 | Fresh Kills, in Staten Island, New York, becomes the largest landfill in the world. |
| 1986 | Rhode Island becomes the first state to pass mandatory recycling laws for aluminum and steel cans, glass, newspapers and #1 and #2 plastic. |
| 1986 | Rhode Island enacts the nation's first statewide mandatory recycling law. |
| 1986 | The city of San Francisco meets its goal of recycling 25% of its commercial and residential waste. |
| 1987 | The Garbage Project at the University of Arizona, Tucson begins to excavate modern landfills as if they were ancient archaeological sites. The goal is to determine exactly what is inside landfills and how much of it biodegrades. |
| 1987 | The Mobro, a Long Island garbage barge, is turned away by six states and three countries. The garbage (mostly paper) is finally incinerated in Brooklyn and the ash buried in a landfill near Islip. |
| 1988 | "Nobody ever has enough." - Lewis Lapham, Money and Class in America. |
| 1988 | The EPA estimates that more than 14,000 landfills have closed since 1978, more than 70% of those operating at that time. The landfills were full, unsafe or the owners declined to adhere to new standards. |
| 1988 | The Plastic Bottle Institute develops a material-identification code system for plastic bottle manufacturers (this is our current #1-#7 system). |
| 1989 | EPA issues "An Agenda for Action," calling for an integrated solid waste management approach to solving solid waste problems with waste problems, with waste prevention and recycling as its first two priorities. |
| 1990 | 140 recycling laws enacted in 38 states and the District of Columbia. |
| 1990 | McDonald's announces plans to stop the use of Styrofoam packaging of its food due to consumer protests. |
| 1990 | Neither shortening nor lengthening product life can be a general principle. The strategy, rather, is to fine tune the durations of things, now avoiding cheap things that break too soon and clog our trash cans, now expensive objets that last too long and clog our lives." - Kevin Lynch, Wasting Away. |
| 1990 | On December 4, both Coca-Cola and Pepsi announced that they will begin using a recycled PET (#1 plastic) bottle made of about 25% recycled plastic resin. |
| 1991 | EPA issues comprehensive municipal solid waste landfill criteria required by the Hazardous and Solid Waste Amendment. |
| 1991 | "Our economy is such that we cannot 'afford' to take care of things: labor is expensive, time is expensive, money is expensive, but materials - - the stuff of creation - - are so cheap that we cannot afford to take care of them." - Wendell Berry |
| 1993 | Municipal Solid Waste landfill criteria become effective for most landfills in the U.S. |
| 1993 | "We're reminded a hundred times a day to buy things, but we're not reminded to take care of them, repair them, reuse them or give them away." - Michael Jacobson, Center for the Study of Commercialism |
| 2000 | Cities in California are required to recycle 50% of its waste. |
In Praise of the Maligned Sweatshop
Kristof, Nicholas D. "In Praise of the Maligned Sweatshop." New York Times 6 June 2006: A21(L). Global Issues In Context. Web. 26 Oct. 2010.
Global Issues Viewpoint: In this editorial, the author argues that negative Western perceptions of sweatshops in developing nations actually do more harm than good for the low-level workers who are employed there. Because companies fear being criticized for running sweatshops, they avoid building factories in the poorest countries where the work is most needed. The author of this editorial is Nicholas Kristof, a two-time Pulitzer Prize–winning journalist for The New York Times. His views on sweatshops are dramatically different than those of most Americans, and are based on years of personal experience in developing nations such as China and Sudan.Namibia, the main country discussed in the article, is dominated by desert, with little in the way of natural resources for its citizens to develop into exports. Approximately half of the population is unemployed, with an equal amount of Namibians living below the poverty line. The country features one of the most unequal distributions of wealth in the world, with a very small number of wealthy citizens and a large poor population. Like Kristof, some economists have argued that sweatshops allow the poorest citizens a starting point from which to build self-sufficiency. Over time, this can help to narrow the gap between rich and poor and reduce wealth inequality. Countries with highly unequal distributions of wealth are more likely to experience political unrest, higher crime rates, and relatively poorer health conditions than other countries.
Africa desperately needs Western help in the form of schools, clinics and sweatshops.
Oops, don't spill your coffee. We in the West mostly despise sweatshops as exploiters of the poor, while the poor themselves tend to see sweatshops as opportunities.
On a street here in the capital of Namibia, in the southwestern corner of Africa, I spoke to a group of young men who were trying to get hired as day laborers on construction sites.
''I come here every day,'' said Naftal Shaanika, a 20-year-old. ''I actually find work only about once a week.''
Mr. Shaanika and the other young men noted that the construction jobs were dangerous and arduous, and that they would vastly prefer steady jobs in, yes, sweatshops. Sure, sweatshop work is tedious, grueling and sometimes dangerous. But over all, sewing clothes is considerably less dangerous or arduous -- or sweaty -- than most alternatives in poor countries.
Well-meaning American university students regularly campaign against sweatshops. But instead, anyone who cares about fighting poverty should campaign in favor of sweatshops, demanding that companies set up factories in Africa. If Africa could establish a clothing export industry, that would fight poverty far more effectively than any foreign aid program.
Namibia was supposed to be a pioneer in Africa's garment industry, for it is stable, pleasant and safe, and its government has tried hard to entice foreign investors. On the edge of Windhoek are a series of low factories set up to produce garments for the American marketplace.
The biggest is the Ramatex Textile Factory, a Malaysian investment that employs 6,000 people. But the owners say they are losing money and will pull out, and other factories have stopped operating as well.
In Windhoek's Chinatown, I met Sun Zhimei, a Chinese woman who operates a small factory employing Namibians. ''I'd like to help this country, by boosting its garment industry,'' she said. But on the day I visited, her factory was deserted. ''It's cheaper to import goods all the way from China than to make them here,'' she complained.
The problem is that it's still costly to manufacture in Africa. The headaches across much of the continent include red tape, corruption, political instability, unreliable electricity and ports, and an inexperienced labor force that leads to low productivity and quality. The anti-sweatshop movement isn't a prime obstacle, but it's one more reason not to manufacture in Africa.
Imagine that a Nike vice president proposed manufacturing cheap T-shirts in Ethiopia: ''Look, boss, it would be tough to operate there, but a factory would be a godsend to one of the poorest countries in the world. And if we kept a tight eye on costs and paid 25 cents an hour, we might be able to make a go of it.''
The boss would reply: ''You're crazy! We'd be boycotted on every campus in the country.''
So companies like Nike, itself once a target of sweatshop critics, tend not to have highly labor-intensive factories in the very poorest countries, but rather more capital-intensive factories (in which machines do more of the work) in better-off nations like Malaysia or Indonesia. And the real losers are the world's poorest people.
Some of those who campaign against sweatshops respond to my arguments by noting that they aren't against factories in Africa, but only demand a ''living wage'' in them. After all, if labor costs amount to only $1 per shirt, then doubling wages would barely make a difference in the final cost.
One problem -- as the closure of the Namibian factories suggests -- is that it already isn't profitable to pay respectable salaries, and so any pressure to raise them becomes one more reason to avoid Africa altogether. Moreover, when Western companies do pay above-market wages, in places like Cambodia, local managers extort huge bribes in exchange for jobs. So the workers themselves don't get the benefit.
One of the best U.S. initiatives in Africa has been the African Growth and Opportunity Act, which allows duty-free imports from Africa -- and thus has stimulated manufacturing there. But last year, partly because of competition from China, textile and clothing imports under the initiative fell by 12 percent.
The Congo Republic's president, Denis Sassou-Nguesso, told me that he would love to have more factories. It's incredibly frustrating, he noted, to see African countries export cotton, timber and other raw materials but rarely have the chance to process them. The American initiative ''is a step in the right direction,'' he said. ''But it needs more of a push.''
One push needs to come from African countries themselves: a crackdown on corruption and red tape. But another useful step would be for American students to stop trying to ban sweatshops, and instead campaign to bring them to the most desperately poor countries.
Gale Document Number:A146663962
Sea Level Rise
Ongoing research by climatologists and marine scientists confirms that global sea level—the average height of the ocean's surface, apart from tidal changes—is rising. In the late 1800s, after two or three thousand years of stability, sea level began to rise at about 1.7 millimeters (0.07 inch) per year. From 1993 to the early 2000s, the rate of sea level rise increased to about 3 millimeters (0.12 inch) per year. Sea level is predicted to rise for at least the next few centuries because of global warming processes already set in motion, but how much farther it rises will depend on factors that are difficult to predict.
Sea level rise is a general term based upon a global average. Shifts in Earth's gravity, spin, and other factors determine whether a particular coastline will experience more or less sea level rise than the global average.
Sea level rise threatens fresh water supplies, coastal lands and settlements, and vital economic activity. For low-lying islands, significant sea level rise could be ecologically and economically devastating.
Warming of the ocean causes the body of water to expand. This effect, confined mostly to the ocean's top 701 meters (2,300 feet), is called thermal or thermosteric expansion. In addition, melting of glaciers and other bodies of ice lying on land causes the amount of water in the ocean to increase. The breakup and melting of floating sea ice does not raise sea level. Discounting minor contributions related to the difference in the density of fresh water and salt water, floating ice has approximately the same effect on water level whether it melts or not. Melting glaciers, however, add new water to the ocean, raising sea level. Retention of liquid water on the continents—as, for example, the damming of rivers or other activities that withhold water from the oceans—also makes a small negative contribution to sea level rise.
The energy that causes both thermal expansion and ice melting comes from solar warming of the atmosphere. According to a strong consensus of scientific data, solar warming is increased by human-caused emissions of carbon dioxide and other greenhouse gases.
Sea levels have also risen and fallen due to natural causes many times over Earth's history. During the last half-million years, Earth has gone through about half a dozen ice ages. These have alternated with warmer periods called interglacial periods. During the last four glacial cycles, each of which has lasted about 100,000 years, sea level has fallen about 122 meters (400 feet) when the ice was at its height and then has risen again by the same amount as the ice melted. These patterns of ancient sea level change are not merely a matter of abstract interest. Scientists study them for clues to the changes that humans may face in coming decades and centuries.
In 2007, the Intergovernmental Panel on Climate Change (IPCC) sponsored by the United Nations predicted that sea levels would rise between 18 and 59 centimeters (7 and 23 inches) by 2100, a reduction of predicted sea level rise from IPCC's 2001 estimate of 8 to 88 centimeters (3.1 to 34.7 inches). However, no other figure in the IPCC report has been so disputed by scientists as the prediction for sea level rise. Critics contend that the range calculated by the IPCC for its 2007 report did not include the possibility of increased contributions to sea level rise from accelerated melting of the Greenland and West Antarctica ice sheets, which has been observed since the report was published. A number of scientists have argued in leading scientific journals that future sea level rise may be greater than the IPCC's 2007 forecast but is unlikely to be less.
Several studies released in 2009 directly and indirectly challenged that the 2007 IPCC report underestimated the extent and rapidity of sea level rise. A report released at a Climate Change Congress in Copenhagen in March 2009 reported that sea levels could rise as much as one meter (39.4 inches) by 2100. Scientists attributed the higher estimate to faster warming oceans and greater thermal expansion. Other studies predicted that ocean temperatures would rise much faster than anticipated and that glaciers and ice sheets in Greenland and Antarctica are melting much more rapidly than expected.
In September 2009, a study published by the British Antarctic Survey in the journal Nature indicated that ice sheets are melting much more rapidly than anticipated. One factor contributing to the accelerated melting was termed dynamic thinning. In this process, warmer ocean temperatures melt the underside of ice shelves, just as warmer atmospheric temperatures increase surface melting.
In late November 2009, a study released by the Scientific Committee on Antarctic Research (SCAR) warned that elevated sea temperatures are accelerating melting along the west coast of Antarctica. The study also predicted that global sea levels are likely to rise by about 1.4 meters (4.6 feet) before 2100 as a result of accelerating Antarctic ice melts. A rise of the magnitude predicted by the SCAR report will endanger many well-populated coastal cities and areas around the world.
As of February 2010, a wide range in estimates of sea level rise continued to challenge researchers. A 2009 study published in Nature Geoscience comparing sea level changes with historical temperature changes estimated that by 2100 sea level could rise as little as 7 centimeters (approximately 2.8 inches) with a temperature increase of 1.1 degrees Celsius (2 degrees Fahrenheit) to as much as 84 centimeters (33.1 inches) as a result of a 6.4 degrees Celsius (11.5 degrees Fahrenheit) rise in average global temperatures.
While predictions are expected to shift with new data, the vast majority of models predict significant sea level rise that will result in perilous consequences. Most experts and government leaders argue that an increase of just half a meter (1.6 ft) in global sea level would be a geopolitical and economic catastrophe for many densely settled coastal areas. In July 2009, United Nations officials released studies predicting that climate change could lead to human displacement and mass migration. As many as 700 million people might be forced to relocate by 2050 if the most severe climate change models prove accurate.
During 2009 and the first half of 2010, glaciers in Greenland, including the prominent Jakobshavn Isbrae glacier, recorded record retreats. Such glacial retreats directly contribute to sea level rise. Since 2000, melting of Greenland's glaciers has contributed enough water to raise global sea levels by 5 mm (.2 inches).
Full Text:COPYRIGHT 2010 Gale, Cengage Learning
Gale Document Number:CP3208520172