Warren Foster
Guest Author
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/ 25 February 2008

Powering traffic lights: where batteries may be a better solution

The Johannesburg Roads Agency (JRA) is reviewing alternative energy sources to keep the city’s traffic lights operating and intersections flowing during blackouts. The use of solar-powered lights and lights running on ordinary UPS batteries are being considered. Johannesburg already has 15 intersections that use battery power on a pilot basis, while one site uses solar power.

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/ 25 February 2008

Sudan flare-up likely

Sudan’s Abyei region is a possible trouble spot from which conflict could resume, three years after a comprehensive agreement was signed to end civil war between the north and south, the United Nations special envoy to Sudan has warned. The oil-rich region, which lies between north and south Sudan, has experienced an administrative and political vacuum after disagreements over its status.

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/ 22 February 2008

Cameras needed at taxi ranks

Johannesburg police are still looking for the perpetrators of a violent sexual assault on a woman inside a Johannesburg taxi rank last weekend. Nwabisa Ngcukana (25) was stripped naked, had alcohol poured on her head and was sexually assaulted at the Noord Street taxi rank — apparently because she was wearing a miniskirt.

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/ 20 February 2008

A tale of two billboards

Solar-powered billboards in Jo’burg and Cape Town have brought heat and electricity to two townships and helped to shine the spotlight on some of the issues facing the communities in which they are located. A year after it was constructed the first solar-powered billboard in South Africa has brought a primary school in Alexandra, Johannesburg, out of obscurity and into the global limelight.

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/ 20 February 2008

Getting industries to clean up their act

Hazardous chemicals are detrimental to the environment. In China last week sulphuric acid leaked into the water supply from a chemical factory, poisoning at least 26 villagers, illustrating just how dangerous chemicals can be. China has a bad track record. It has some of the most chemically polluted cities in the world, following decades of massive industrial and economic growth.