
Earth’s deadly places: how physics, chemistry and biology collide with human limits to create lethal environments.
The most dangerous environments are not deserts or seas but oceans raging with unseen currents around seemingly calm shores.
Antarctica's cold kills faster than heat—hypothermia can strike in minutes, while venomous bites are rarer than frostbite risk.
Rainforests kill more people yearly from hidden diseases and unstable canopies than from obvious predators or snakes.
Caves harbor lethal air pockets: sudden oxygen deprivation can occur even in well-ventilated looking caverns.

The most dangerous environments are not deserts or seas but oceans raging with unseen currents around seemingly calm shores.
Antarctica's cold kills faster than heat—hypothermia can strike in minutes, while venomous bites are rarer than frostbite risk.
Rainforests kill more people yearly from hidden diseases and unstable canopies than from obvious predators or snakes.
Caves harbor lethal air pockets: sudden oxygen deprivation can occur even in well-ventilated looking caverns.