Neotropical rainforests under assault from infrastructure & mining

Everywhere you look across Central and South America, native ecosystems are being imperiled by an avalanche of new mining and infrastructure projects. 

  Forests under assault in Panama  (photo by William Laurance)

Forests under assault in Panama (photo by William Laurance)

Consider just three examples:

- In Nicaragua, a massive interoceanic canal project threatens vast expanses of rainforest and other ecosystems.  It will imperil 4,000 square kilometers of forest and wetlands, slice across several key nature reserves, and cut through the MesoAmerican Biological Corridor.  This issue is so worrisome that the Association for Tropical Biology and Conservation, the world's leading scientific organization devoted to tropical research, issued a special resolution of concern.

- In Brazil, many protected areas are under assault from mining.  A paper just published in the leading journal Science shows that at least 20% of all Brazil´s strictly protected areas and indigenous reserves -- an area larger than the UK and Switzerland combined -- are under consideration for mining projects.  More than 44,000 square kilometers of Brazil's protected areas have been lost to mining and other developments since 2008.

- Across the Amazon basin and Andes, at least 150 major hydroelectric dams have been proposed or are under construction.  These projects will not only flood large expanses of forest but their associated road projects will imperil some of the basin's most remote and biologically important areas.  For instance, it is estimated that 12 dams proposed for the Tapajós River in Brazil would result in nearly 1 million hectares of additional forest loss by 2032.

Who is responsible for this tsunami of forest-destroying projects?  There is no single cause, but China's unquenchable thirst for natural resources, the aggressive Brazilian development bank BNDES, and ambitious regional development schemes such as IIRSA are all leading contributors.

No one wants to halt responsible economic development, but this is a feeding frenzy.  Unless scientists and conservationists have a louder voice, some of the world's most important environments could be lost forever.