According to the text, the author’s main intention is to: 

The Amazon Forest

The Amazon is often called the lungs of the earth and produces 20% of the world’s oxygen. For this reason, many people are trying to stop deforestation in the rainforest. Brazil, for example, is working hard to help the rainforest survive.

A few years ago, the Brazilian government put forward a plan called ARPA (Amazon Region Protected Areas). It had the support of many international agencies, including the World Bank, and the German Development Bank, KfW. The main aim was to build new areas of protected rainforest, maintain areas of the rainforest that hadn’t yet been destroyed, and stop deforestation. Deforestation contributes greatly to global warming because carbon dioxide is released into the atmosphere when trees get cut down and burned.

One of the first areas to be recognized as part of ARPA was the Tumucumaque Mountains National Park. It is 38,800 km² and is the same size as Switzerland, a small country in Central Europe. It’s the world’s largest protected tropical national park, and the second largest national park. It is home to certain species of jaguar, eagle, and lizard, which can only survive in the rainforest. Many of these species are under threat from climate change and deforestation.

In order to work in the park, conservationists need a reliable map. However, no map existed, and they didn’t have enough knowledge to make one on their own. They came up with the idea of involving local tribes to help them, combining modern and ancient methods to produce a map. The tribes learned to use global positioning system handsets (GPS), in conjunction with their local knowledge of the area, which included fishing and hunting grounds, and places of historical or mythical importance. Aerial photos were a 20useful aid in the process as well. This method of map-making is now the key to the future of rainforests, in Brazil and the rest of the world too.