IB Part 1: Populations in Transition

At least 28% of South African schoolgirls are HIV positive compared with 4% of boys because "sugar daddies" exploit them, the health minister says.

The death of the woman who was the victim of a gang rape in Delhi ignites debate about why India treats women so badly, says the BBC's Soutik Biswas.

In 2010, Ghana announced a 60% increase in GDP estimates and Nigeria may soon follow suit. How do such miraculous rises come about?

China’s urban population surpassed that of rural areas for the first time in the country’s history after three decades of economic development encouraged farmers to seek better living standards in towns and cities.

BP is temporarily banned from new US contracts due to a "lack of business integrity" over the Gulf of Mexico disaster, the US environment agency says.

As new discoveries of coal, oil and gas across different parts of Africa look set to transform global energy markets, will the economies of those countries also benefit?

Denis Mukwege, a gynaecologist working in DR Congo has a unique perspective on the horror of rape as a weapon of war.

Children growing up under China's one-child policy are less trusting, risk averse and pessimistic, a study in the journal Science concludes.

Philippines President Benigno Aquino signs into law a family planning bill that took 14 years to pass amid opposition from the Catholic Church.

Delegates at UN climate talks in Qatar agree to extend the Kyoto Protocol on fighting global warming until 2020, avoiding a major new setback.

An international effort of more than 20 polar research groups finally settles the question of how much polar ice melting has added to global sea levels.

After a decade of legal wrangling, this year Shell Oil was given permission to begin exploratory drilling off the coast of Alaska.

An official in India comes up with a new way to encourage low caste poor people to cope with food shortages - rat meat.