An explanation that fear of crime is made worse by over-zealous media reporting.
Property developers need to consider designing out crime from new developments.
Description of the lower course of the river Severn as it widens, becoming a tidal river.
How changes to Earth's orbit can contribute to changes in temperature and climate.
Members of a typical Rocinha family describe their work and their thoughts on favela life.
River Severn aerials - river widening, a flattening of the valley floor and meanders