The Kayans believe themselves to be surrounded by many intelligent powers capable of influencing their welfare for good or ill. Some of these are embodied in animals or plants, or are closely connected with other natural objects, such as mountains, rocks, rivers, caves; or manifest themselves in such processes as thunder, storm, and disease, the growth of the crops and disasters of various kinds.

The sustainable forestry challenge. The failure of implementation of forestry laws in Brazil. Enforcement of forestry laws in Finland. Analysis and recommendations.