What is a debris flow?

Landslides constitute one of the most destructive geological hazards in the world today. One of the main reasons for this is because of the high speeds that slides can reach, up to 160 km/hour (100 mph). Another is the fact ...

The risk of 'cascading' natural disasters is on the rise

In a warming world, the dangers from natural disasters are changing. In a recent commentary, we identified a number of costly and deadly catastrophes that point to an increase in the risk of "cascading" events – ones that ...

Humans can make rockfalls from earthquakes more dangerous

Earthquakes (including the tsunamis they generate) are Earth's most fatal natural hazard, accounting for approximately 55% of the more than 1.35 million disaster deaths in the last two decades. The US Geological Survey predicts ...

Mountain forests don't need humans – but we need them

Forests in the mountain regions of our planet are fragile ecosystems, suffering from the impact of climate change. However, to survive in the long-term, these ecosystems do not need human intervention. It is rather the humans ...

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