Environmental historians take pride in the interdisciplinary character of their field. Yet they practice this interdisciplinarity mostly by drawing from methodologies and approaches from several disciplines. Rarer, and definitively more challenging, are the attempts to establish an actual dialogue between disciplines.
Gregory Cushman’s preface opens with some bold claims. He suggests that the Black Death, the African Slave Trade, the Second World War and the harvesting of bird excrement deposits from islands in the Pacific oceans were of equal importance in world history.