World population: Special report
BBC News Online special coverage of the challenges facing an overcrowded world.

Population: Why we should worry
The United Nations predicts that we could double the world's population in 50 years - unless we act now.

Planet feels strains of people pressure
Something has to give as human numbers grow - and natural systems are under ever greater stress.

The sexual health minefield
An estimated 114 million acts of sexual intercourse take place in the world every day. Many lead to disease and unwanted pregnancy.

West accused of 'woeful' family planning effort
UN Population Fund director Dr Nafis Sadik tells BBC Talking Point that a lack of money from developed countries has hampered attempts to control the world's population.

Death in the midst of life
More than one woman a minute dies as a result of problems related to childbirth and pregnancy. Most deaths are avoidable, say family planning experts.

World population: Links guide
BBC News Online's guide to websites giving information on population, family planning and environment issues.

Viewpoints: Population control
Pro-family Human Life International and the International Planned Parenthood Federation go head to head over the key contoversies at the UN population conference in New York.

Population pressure and conflict
A neglected factor in the conflict in Kosovo and other wars has been the role of rapid population growth in creating fear and ethnic tension, writes Roger Harrabin.

Bangladesh struggles to cope
Overcrowded Bangladesh is feeling the strain on its limited resources and land as David Chazan finds out.