ABSTRACT
Risk perceptions are personal opinions about risks. A risk is the chance that a specific threat will cause a specific harm. Threats may be natural (hurricanes), human-made (pesticides), or both (flooding amplified by anthropogenic climate change). Anything that people care about can be “at risk” – or threatened with harm – including one’s life; mental or physical health; the lives, health, or livelihoods of others; one’s reputation or property; biodiversity; lifestyle; or values such as freedom, justice, or democracy.
