27/06/2026
This used to be one of the oldest rainforests on Earth.
Some estimates place Borneo’s rainforest origins deep in the Cretaceous period, around the time dinosaurs still moved through tropical worlds. The Andes, by contrast, reached anything close to their modern height much later, through the long tectonic upheavals of the Cenozoic era. That is the scale of the contrast. An ancient forest system, measured in tens of millions of years, being remade within the span of a few human generations. And in the last forty years, a single cultivated tree, the African oil palm, Elaeis guineensis, has replaced enormous stretches of it.
A forest older than the mountains:
The dipterocarps that dominate Borneo’s lowlands are giants. Individual trees can rise above the canopy like living towers, and the family they belong to, Dipterocarpaceae, has been the structural backbone of Southeast Asian rainforest for tens of millions of years. That continuity matters. Unlike the forests of Europe or North America, which were repeatedly scraped back and reshaped by Pleistocene ice sheets, much of Borneo’s tropical forest history belongs to a far older ecological timeline. Its lineages, soils, fungi, birds, mammals, insects, and canopy architecture developed through deep time. That is the system being cleared, in rectangular blocks, for rows of a single tree.
The plantation that replaced it:
Oil palm arrived in Southeast Asia from West Africa as an ornamental in the 19th century and became a commercial crop in the 20th. Today Indonesia and Malaysia produce most of the world’s palm oil, and Borneo, split between Indonesian Kalimantan, Malaysian Sabah and Sarawak, and the small sultanate of Brunei, carries a large share of the plantations.
Satellite investigations and environmental reporting have repeatedly shown that clearing for palm oil in Indonesia has continued even after the industry’s No Deforestation, No Peat, No Exploitation pledges became a public standard. The problem is not only direct clearance by a branded company. It is also the way cleared land can move through intermediaries and eventually enter supply chains with its origin blurred.
The substitution is brutally simple. A hectare that once held a dense mix of tree species, birds, mammals, insects, epiphytes, fungi, and canopy layers becomes a hectare of one species, planted in grids roughly nine metres apart, harvested on a short commercial rotation.
Silicon Canals Editorial Team | 26 June 2026 | | Continue reading:
Borneo's lowland dipterocarp rainforest is roughly 130 million years old — older than the Andes — yet decades of oil palm expansion have replaced vast stretches of it with rows of a single cultivated tree.