Planning is about balancing the need for a decent environment with business's need to grow, and the south-east of England is one of the richest and most densely-populated areas of the world.

ECONOMIST: Planning

The same boom has brought drilling rigs, and the fears of air and water pollution that accompany them, into densely-populated urban areas.

WSJ: As energy boom nears cities, a backlash grows

Dakar's mayor, Khalifa Sall, told RFM radio that the ramshackle development of densely-populated residential areas in the city made it impossible for the emergency services to operate effectively.

BBC: Senegal fire at Koranic school kills nine children

Densely populated, low-lying areas, such as large river deltas and small islands, are at the greatest risk from flooding.

NPR: In a Strategic Reversal, Dutch Embrace Floods

Available now for large-scale commercial deployment in China Mobile's first trial TD-LTE network, which spans 13 cities in China, lightRadio Metro Radio will bring high-performance 4G services to residents in densely populated areas of Shanghai, Nanjing and Qingdao, three of the fastest growing cities in China and indeed the world.

ENGADGET: Alcatel-Lucent's latest lightRadio development aims to spread TD-LTE across China

If nobody has applied in the present process, there may be opportunities again in the future - either in the two large cities, or in other densely populated areas including Inverclyde and the areas around Aberdeen and Dundee.

BBC: Deadline passes for Glasgow and Edinburgh local TV bids

North Korea is believed to have hundreds of short-range missiles, many of which could target Seoul and other densely populated areas in South Korea.

WSJ: Pyongyang Fires More Missiles