There are more than 1500 active volcanoes in the world. But only one of them is located in South Asia.
Volcanoes can alter the course of history forever.
Technology exists to keep the planet safe in the event of a rogue asteroid. Even climate change, with all its baggage and unpredictability, is conceivably conquerable. But a supervolcanic eruption is an unstoppable force of nature that the world is utterly unprepared for.
But volcanoes are mesmerising.
In fact, there is something about trekking up an active volcano that feels fundamentally human.
Nothing survives at the top of a volcano. No vegetation; even birds avoid flying by them. Often, the only signs of life near the fuming sulphur pits and rivers of lava, are the humans staring right into them.
Clearly, in some people, the instinct for adventure is stronger than the instinct for survival.