Climate change may drown some of Africa's cities
People in Dhaka, the capital of Bangladesh, prefer to commute in three-wheeled autorickshaws, taxis and buses that run on compressed natural gas (CNG), in their bid to slow down global warming. Nineteen African port cities could be in danger - ranging from Tunis and Alexandria in the north, to Cape Town and Durban in the south.
CNG produces a lower level of greenhouse gases and is an environmentally cleaner alternative to petrol. Dhaka's residents are among the most vulnerable to global warming and don't want to become "climate terrorists".
The city is among more than 3,000 identified by the UN-Habitat's State of the World's Cities 2008/09 as facing the prospect of sea level rise and surge-induced flooding. The report warns policymakers, planners and the world at large that few coastal cities will be spared the effects of global warming.
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