IB Geography Patterns and Change

Forests' role as massive carbon sinks is "at risk of being lost entirely", top forestry scientists have warned.

Sir David Attenborough is now patron of the Optimum Population Trust, which lobbies to cut the number of people on Earth. But predicting population change is tricky, says Michael Blastland in his regular column.

Climate change experts in North and South America are increasingly worried by the potentially devastating implications of higher estimates for possible sea level rises.

There are already too many people living on Planet Earth, according to one of most influential science advisors in the US government.

UN aid agencies are suggesting wealthy industrialised nations should perhaps rethink their policies on immigration and asylum in the wake of the latest tragedy in the Mediterranean, writes the BBC's Imogen Foulkes in Geneva.

Two years after having one of the lowest birth rates in the world, Georgia is enjoying something of a baby boom, following an intervention from the country's most senior cleric.

Jalozai was the largest Afghan refugee settlement but was demolished in June 2008 and its settlers were told either to go to their home country or move to other locations inside Pakistan. Insecurity, land disputes and lack of jobs have stopped tens of thousands of returnees from moving to their original areas and rebuilding their houses. Some households, including Jamaluddin's, have set up tents and mud huts in different parts of the eastern Afghan province of Nangarhar

Government investment worth £50bn would convince private companies that power from the Sahara solar scheme is feasible and attractive option, expert says

The pioneering new president of the Indian Ocean nation announces plans for his country - under grave threat from climate change - to go carbon-neutral in a decade

Recycling is good for the environment, but it costs. Is it worth it?

Britain will overtake Germany as the country with the highest population in Europe, the United Nations predicted yesterday.

Nasa Jet propulsion laboratory

A swelling global population, changing diets and mankind's expanding "water footprint" could be bringing an end to the era of cheap water.

The world's second biggest pharmaceutical company is to radically shift its attitude to providing cheap drugs to millions of people in the developing world.