The Miami-based composer's work is informed by his concerns about the environment and the withering of human and cultural memory. Espinosa has created several soundscapes and installations in collaboration with artist Xavier Cortada, who he joined on a 2006-2007 National Science Foundation residency in Antarctica (McMurdo Station and the South Pole) and at the Kunst- en Natuurwandeling OverLeven, Foundation Nature Art Drenthe in the Netherlands in 2009.