Green Planet: Colombia is one of the latest in a series of albums that pays tribute to a specific exotic world location through ambient music. Moody keyboards float over sparsely played guitar in long, eight-minute pieces that explore the musical landscape of Colombia. This is very low-key music, with very little surprise or action. On the other hand, the length of the songs adds to the understated melodies, and it is not meant for basic listening. Anyone who wants pleasant background music for a quiet evening could do worse than getting this, and some of the proceeds from buying the album go to a charity that protects children from exploitation.