Résumé
Landscape observers in peru's Án-cash region have been concerned for over a decade about the impact of climate change on the shrinking glaciers of the Cordillera Blanca and the Santa River watershed (Bury et al., 2013). However, the Santa River valley, which is known locally as Callejón de Huaylas and is one of Peru's most important inter-Andean valleys, has been experiencing a second dramatic landscape change that has gone mostly unnoticed by outsiders. It has rapidly become covered by huge swathes of white plastic used in the construction of high tunnels for blueberry production (Figure 1).1 Primarily for export, this production is transforming resource use as well as valley aesthetics, with impacts for diverse sectors of society in Áncash. Furthermore, it suggests potential new trends in global agro-exports.