The Cassandra Phenomenon is a metaphor that refers to an individual or individuals who make predictions of impending disaster but whose predictions are not believed or well-received. In the modern world this happens when scholars and other thinkers make predictions of future ecological or financial disasters based on current events and actions in those venues.
This term makes reference to the mythological character Cassandra, daughter of King Priam of Troy, who was first given the gift of prophecy by the god Apollo but was later cursed so that no one would believe those prophecies.