Refugees invaded the park looking for safety, animals were shot for food, and trees logged for timber.

Today, the park is being regenerated by an improbable combination of movie-men from Los Angeles, and investmentors in London. They have been drawn together by the UK-based company Envirotrade, which sells carbon offsets to businesses and individuals to support the conservation and management of existing forests and the planting of new ones.

Some environmental groups question the value of carbon offsetting, saying it discourages individuals from taking real action to cut greenhouse gas emissions, while others say any mechanism that halts the destruction of forests is having a positive benefit in the struggle against climate change.

All this happening as preparations are made for the Copenhagen Summit this winter which will discuss what will replace the Kyoto Protocol in 2012.

Controversially forestry was excluded in 1997 and the destruction of key global rain-forests since then is seen by many as the obvious outcome of this decision.

Also up for grabs are the cap and trade systems that created carbon markets in the first place.

We will follow the flow of money from companies who are voluntarily buying offsets, from the City of London to the small farmers who maintain the trees.

Along the way Taking the Credit? will consider the modern conundrums of aid versus trade, the responsibilities of the developed and developing world in the climate change debate, and look at what kinds of ends justify what kinds of means.