Two-stroke Engine Pollution Solution

Cities across the South choke on the pollution made by the small two-stroke engines (http://www.howstuffworks.com/two-stroke.htm) powering motor scooters, motorcycles, auto rickshaws, tuk-tuks and other vehicles. People choose these vehicles to get around because they are cheap, powerful and easy to fix. But the environment – and human health – suffers as a result. And as cities balloon and populations grow, the number of journeys and two-stroke engines grows with it.

In large cities across Asia, 1 million three-wheeled auto-rickshaws form an important means of daily transportation, and a source of income for their drivers. And the Asian Development Bank estimates there are over 100 million vehicles using two-stroke engines in Southeast Asia. But these vehicles cause serious air pollution and emissions of carbon dioxide (CO2), which contributes to global warming.

Because two-stroke engines burn an oil-gasoline mixture, they also emit more smoke, carbon monoxide, hydrocarbons and particulate matter than the gas-only, four-stroke engines found in newer vehicles.

In the Philippines, auto rickshaw drivers are pioneering specially adapted two-stroke engines that reduce particulate emissions by 70 percent and carbon dioxide emissions by 76 percent.

Tim Bauer, the 31-year-old American mechanical engineer who developed the technology, said auto rickshaws “play an essential role in the social and economic fabric. But their impact on public health is disastrous.”

Motorized tricycles produce an astonishing amount of pollution: each one is equivalent to 50 cars. In Bangkok, Thailand, two-stroke engines contribute 47 percent of pollution particulates in the air.

The World Health Organization (www.who.org) ranks urban outdoor air pollution as the 13th greatest contributor to disease burden and death worldwide. It has been estimated that the air pollution leads to the deaths of more than half a million people a year. About two-thirds of the residents of Delhi and Calcutta suffer from respiratory symptoms such as common cold and dry and wet cough, much of this caused by two-stroke engine emissions.

Two-stroke engines are highly inefficient users of fuel: up to 40 percent of the fuel and oil goes out of the exhaust pipe unburned. This exhaust is packed with oxides of carbon, nitrogen, sulphur, hydrocarbons and fine dust – all toxic contributors to air pollution.

But the attraction of these engines remains strong. “They are powerful, simple, reliable and robust,” said Bauer, “and spare parts are easy to find. They also have a long lifetime.”

Bauer faced some strict constraints in developing the technology.

“It had to substantially reduce emissions without impairing the engine’s performance. It had to be installed without machining the engine crankcase, and with only a basic tool set. Of course, it also had to be affordable for Filipino drivers.”

Using off-the-shelf components, Bauer developed a kit that turns two-stroke engines into fuel-injection machines. This adjustment reduced particulate emissions by 70 percent and carbon dioxide emissions by 76 percent. He now sells the kits through Envirofit, a non-profit organization (http://www.envirofit.org/). It has been pilot tested at two Filipino holiday resorts, Vigan and Puerto Princesa.

Auto-rickshaw drivers tend to be poor and earn on average US $3 to US $4 a day. The cost of fitting vehicles with Bauer’s new technology is met by microcredit.

“Drivers earn money daily, so it’s easy for them to pay back their loan, and 90 percent of them do it in less than a year,” he said. Over 260 taxi drivers have already installed the new kit.

“These drivers are at the base of the economic pyramid and these tricycles are a testament to their ingenuity and work ethic. At the end of the day, we can improve their lives with a cylinder head, a few brackets and, of course, hard work.”

Bauer pioneered his solution while working on fuel injection in snowmobiles at the Engines and Energy Conservation Lab at Colorado State University. He started to market the solution in Asia in 2004. Bauer has won a Rolex Award for Enterprise to pay for the distribution of the kits throughout Asia.

There is, of course, another solution: an outright ban or measures to push the vehicles off the road. In the Philippines’ San Fernando City, economic incentives were what drove the transition from two-stroke to four-stroke (less polluting) tricycles. In 2001, three-quarters of the city’s 1,600 registered tricycles ran on two-stroke engines. But after a city council mandate to totally phase out the vehicles by 2004, and offers of interest-free loans for down-payments on four-stroke models, more than 400 four-stroke tricycles had replaced the older two-stroke models.

When Bangkok toughened up vehicle inspections and emissions standards in 2000, two-wheelers made up over 96 percent of the city’s traffic. But by March 2004, they made up only 40 percent, according to Supat Wangwongwatana, deputy director general of Thailand’s Pollution Control Department.

By David South, Development Challenges, South-South Solutions

Published: December 2008

Read more about the impact of air pollution on human health in Beth Gardiner's Choked: The Age of Air Pollution and the Fight for a Cleaner Future (Granta, 2019). 

Beth Gardiner shows off the first galley proof of Choked on Twitter.

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP's South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South's innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

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Cyber Cities: An Oasis of Prosperity in the South

The future is arriving in the South even faster than many think: so-called “cyber cities” are being created to become this century’s new Silicon Valleys. Well-known ‘cyber cities’ like India’s Hyderabad and Bangalore have been joined by many other cities across the global South. But two places are set to make big waves with their ambition and drive in 2008: Mauritius and China.

Mauritius, an island in the Indian Ocean strategically close to Africa, better known for tourism and luxury hotels, wants to become the world’s “cyber island”. Armed with the first 3G network in Africa (the third generation of mobile phone technology – offering high-speed internet access and video telephony), Mauritius is moving fast to make good on this advantage. And it is even moving to the next level of mobile-phone speed, something called High-speed Download Packet Access (HSDPA) – allowing even greater quantities of information to be exchanged.

Mauritius joins a select few countries, including Japan and South Korea, at the forefront of access to 3G. Wireless – or wi-fi – computer access is available in three-quarters of the island.

Outside the capital of Port Louis, former sugar cane plantations are being turned into a “cyber city”. The centrepiece of the development is the 12-story Cyber Tower, home to young technology start-ups. The country is also investing heavily in education from primary school to university, to make sure the country’s 1.2 million people are cyber-ready.

Computer novices in remote villages are being visited by a Cyber Caravan with a classroom teaching housewives, children, the unemployed and the disabled basic computing and world processing.

Mauritius built its wealth on tourism, sugar plantations and textile manufacturing. But it is worried that trading arrangements that helped the sugar and textile industries to flourish, will be taken away. So it is focusing on the future: it sees itself as the world centre for disaster recovery computing services for the world’s companies in event of a disaster in their own country that destroys computer networks.

In China, its largest Cyber Park is under construction in Wujin New and High-tech Development Zone of Changzhou. It will be a technology incubator, a research and development centre, and a place for small and medium-sized enterprises to innovate.

What is truly making people stop and think is another far-reaching project: the Beijing Cyber Recreation District (CRD) – China’s most ambitious digital media industry development: a virtual worlds’ initiative with digital media academies and company incubators. It is spread over 100 square kilometres, creating the world’s largest virtual world development. It is already home to more than 200 game and multimedia content producers in western Beijing.

The CRD says its goal is “to create a virtual economy providing infrastructure and platforms through which any business – not just those based in China – can come in and sell their real-world products and services. While a concerted effort will be placed on bringing Chinese businesses and consumers in, the effort is worldwide and open to businesses and consumers from any country.”

The idea is to create a vast virtual economy for commerce where manufacturers can directly connect with billions of customers – bypassing middlemen.

It claims it will be “the world’s one-stop shop for customers and producers.” It will host billions of avatars – or virtual people – surpassing the capability of the very popular Second Life virtual world game’s 40,000.

By David South, Development Challenges, South-South Solutions

Published: January 2008

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP's South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South's innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

Follow @SouthSouth1

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Africa’s Fast-Growing Cities: A New Frontier of Opportunities

According to a new report by the International Institute for Environment and Development, Africa now has a larger urban population than North America and 25 of the world’s fastest growing big cities. Europe’s share of the world’s 100 largest cities has fallen to under 10 percent in the past century.

Counter to common misperceptions about what is luring people to big cities, the report’s author, David Satterthwaite, said it isn’t because governments and aid are attracting them: government “policies leave much to be desired as they tend to neglect the urban poor, leading to high levels of urban poverty, overcrowding in slums and serious health problems. Governments should see urbanisation as an important part of a stronger economy and their expanding urban population as an asset, not as a problem.”

But global perceptions of Africa are changing. The Mo Ibrahim Foundation has listed the most efficiently run African economies, with a strong correlation between good governance and higher growth rates (Mauritius, Seychelles, Botswana, South Africa, Namibia, Ghana and Senegal).

In most of urban French West Africa, extensive interviews with micro-entrepreneurs and micro-finance practitioners found that most operating micro-enterprises in the informal economy are entrepreneurs by necessity, and that their most basic needs drove their business activities and behaviours. Success was held back by lack of capital, poor training, and a general aversion to risk (Faculty of Management, Dalhousie University).

While access to capital has been identified as the key factor in opportunity, entrepreneurs aren’t even waiting for microfinance institutions to help them. “I started this business of selling chips (French fries) two years ago using money we raised as a group of 30 women,” said Mary Mwihaki, 27, who lives in the Mathare slum area outside Nairobi.

Each member of her group of women contributes about US 30 cents a day and the resulting US $9 is given to a different member of the group on a rotating basis, she told IRIN news agency. Mwihaki waited three months to raise the US $27 she needed. She joins many other women across the country taking the same approach to raising capital.

For some entrepreneurs, it is just the proximity to a buzzing urban atmosphere that is a spur to action. One clothes seller told the African Executive he has been able to make enough money to get a house built just selling second hand clothing. Twenty-three-year-old Henry Mutunga in Nairobi, Kenya takes advantage of the high turnover of the city’s Machakos Country bus terminal to sell second hand clothes.

“After months of searching for a job, I asked myself, ‘Why am I wasting the business studies knowledge I acquired in school?’ I was not comfortable being left in the house every morning, with nothing to do, while my uncle went to work in order to feed me and pay the house rent. I got hooked to the urban mentality and tried my hand at selling trousers.”

Now with two employees, he is able to rent his own house, and is able to use extra money to have his own house built. He urges other youth to become employers, not employees.

At the technological end of entrepreneurship, in Nairobi, Kenya, Mumbi’s Dial-a-Cab company is joining 20 fleet firms in the country to adopt a new mobile phone-based vehicle-tracking technology developed by two young African IT entrepreneurs, Waweru Kimani and Paul Mahiaini. The technology allows management to know how low fuel is, which car has gone where, when a car has been hijacked, what car doors are open, how long it has been stopped, and where it is located. Impressively, it also allows management to stop the car at the touch of a button if it has been stolen. It costs US $570 to install, and costs US $40/month to use.

Other entrepreneurs are piggy backing their success on the booming housing markets in Angola, Ivory Coast, Liberia, Nigeria, Congo, Mali, Morocco, Tunisia, Botswana, Ghana, Mozambique, Rwanda, Kenya, Mauritius, Uganda, Algeria, Egypt, Senegal: all creating enormous opportunities for entrepreneurs providing other services, like furniture, appliances, insurance, landscaping, security, architecture etc.

And the giant US internet search engine Google is now setting up operations in West Africa, based in Dakar – a sure sign that they see this as a new boom market. And Indian investment in Africa has also dramatically shot up this year, according to mergers and acquisitions magazine, The Deal. In 2005, US $81 million was invested in Africa. In 2006, US $340 million; and in 2007, US $294 million.

By David South, Development Challenges, South-South Solutions

Published: November 2007

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP's South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South's innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

Follow @SouthSouth1

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