Karachi’s public buses to run on cow poo

Imran Mukhtar –

In a bid to freshen its air and cut planet-warming emissions, the Pakistani port city of Karachi will introduce cleaner-running buses powered by a decidedly “unclean” fuel: cow poo.
With funding from the international Green Climate Fund, Karachi will launch a zero-emission Green Bus Rapid Transit (BRT) network, with 200 buses fuelled by bio-methane.
Locals said the new bus system — due to start operating in 2020 — would help reduce air pollution and street noise, but doubted whether it would have enough buses to resurrect the city’s ailing transport system.
“(Karachi’s) public transport system has totally collapsed and most people have to use online taxi-hailing services (and) autorickshaws,” said commuter Afzal Ahmed, 45, who works as a medical sales representative.
After management problems forced the Karachi Transport Corporation to fold up some two decades ago, Chinese-imported buses running on compressed natural gas fell into disrepair and were taken off the road, worsening public transport woes, he noted.
Malik Amin Aslam, adviser on climate change to Pakistan Prime Minister Imran Khan, said the BRT system was the first transport project the Green Climate Fund had approved, and would bring “multiple environmental and economic benefits”. It would not require operating subsidies, he added.
The cheap, clean bus network will cater to 320,000 passengers daily and reduce planet-warming emissions by 2.6 million tonnes of carbon dioxide over 30 years, according to project documents.
The BRT will consist of a 18.6-mile corridor that will benefit 1.5 million residents, adding 25 new bus stations, secure pedestrian crossings, improved sidewalks, cycle lanes and bike-sharing facilities.
The Green Climate Fund, set up under UN climate talks to provide finance to developing countries to help them grow cleanly and adapt to a warming climate, will provide $49 million for the Karachi project out of a total cost of $583.5 million.
The other major funders are the Asian Development Bank and the provincial government of Sindh, where Karachi is located.
The BRT system, to be rolled out over four years, will have a fleet of 200 hybrid buses that will run on bio-methane produced from manure excreted by Karachi’s 400,000 milk-producing water buffaloes, and collected by the authorities.
The project will prevent 3,200 tonnes of cow manure entering the ocean daily by converting it into energy and fertiliser at a biogas plant. It will save more than 50,000 gallons of fresh water now used to wash that waste into the bay, Aslam said.
Ali Tauqeer Sheikh, CEO of Leadership for Environment and Development (LEAD) Pakistan, a policy think-tank, said calculating the overall impact on the environment was complex, as the buses would be introduced in stages.
Pakistan’s authorities often lack maintenance budgets, he noted, highlighting the risk the buses could break down and not be repaired.
If all goes well, Sheikh said the project, as the country’s first green BRT system, would lay the foundation for “climate-smart urban transportation systems” in other places.
It could shake up approaches to public transport among policy makers and planners, serving as a model for other cities, including Lahore, Multan, Peshawar and Faisalabad, he said.
Pakistan needs to launch such projects in big cities to discourage personal vehicle use, thereby easing traffic emissions and smog, and improving air quality and public health, Sheikh added.
Another way to ease air pollution would be to import better-quality petroleum fuels for vehicles, he added.
Ahmad Rafay Alam, an environmental lawyer, said previous BRT projects in Pakistan’s large cities had not focused on environmental sustainability.
Planners should start connecting transport systems with wider urban development, Alam said.
“We need to introduce transport-oriented urban design by encouraging the use of public transport and discouraging use of private vehicles to reduce emissions,” he said. — Thomson Reuters Foundation