Fifty Years of Amazon Research: Philip Fearnside's Quest for Environmental Costs

Philip Fearnside has spent five decades studying the Amazon rainforest and its consequences of deforestation. He began his research in the 1970s, examining agricultural settlements along Brazil's Trans-Amazonian Highway. His subsequent work delved into forest carbon, deforestation, and infrastructure projects.

Fearnside's research calculated the costs of losing the Amazon on account of deforestation, dams, and highways. He demonstrated that clearing forests can carry hidden costs, including greenhouse-gas emissions associated with deforestation, which are not reflected in immediate economic returns from activities like cattle ranching or agriculture.

A major body of Fearnside's research focused on Amazon deforestation, examining how government policies, land speculation, agricultural incentives, and infrastructure interact to encourage forest clearing. He also explored the effects of roads transforming areas previously difficult to access, extending development well beyond the original road itself.