17 EXISTENTIAL THREATS

Navigating the 17 Challenges

The risks we navigate—from catastrophic to existential—define our era. While natural threats like asteroids call for humility, man-made risks are the direct result of our own systems.

Because we created these risks, we have the power to minimize them. Our goal is not to debate definitions, but to transform "eco-anxiety" into collective resilience. By distinguishing between what we can and cannot control, we empower every generation to safeguard our present and preserve the potential for all who follow.

AwareNearth Existential threats Compass - Donut

(double paradox of direction & time)

Imperfect classification of 17 existential threats

NATURAL

Catastrophic natural events, such as asteroid impacts, supervolcanic eruptions, and stellar explosions, have a very low probability of occurring within any given century, yet would result in global devastation. An asteroid collision could trigger a "global winter," while a supervolcanic eruption would cause long-term agricultural collapse through ash and sulfur injection. Similarly, a nearby gamma-ray burst could strip the ozone layer, exposing life to lethal radiation.

anthropogenic

Anthropogenic threats arise directly from human activity and technology, escalating significantly over the last century. A large-scale nuclear exchange could trigger a devastating "nuclear winter," while widespread environmental collapse—encompassing resource depletion and ecosystem failure—threatens the stability of the food chain. Furthermore, a highly contagious pandemic, particularly an engineered one, could cause the collapse of essential social and economic structures.

unknown

This category highlights the limitations of human foresight, reminding us of dangers we have yet to conceive—the "unknown unknowns." It includes "black swans," which are unpredictable, highly improbable events with severe consequences. Furthermore, the rapid development of new technologies may inadvertently create unpredictable risks, much like the belated discovery of nuclear winter as a consequence of atomic power.