The Asian tsunami offers a glimpse of greater catastrophes to come, says Bill McGuire, one of a team advising Tony Blair on natural hazards
Supervolcanos are so big they could start another ice age. Bill McGuire on a truly terrifying phenomenon
Bill McGuire explains what these spidery lines tell us about the Boxing day earthquake, and how scientists interpret the data
Bill McGuire looks at a system which weighs erupted mass - in kilograms
We know that dust from volcanic explosions can chill our climate. Now, Bill McGuire reports, it's becoming clear that weather and changing sea levels can squeeze out lava
Predicting earthquakes may be difficult, but preparing for disasters isn't, says Bill McGuire
If climate change disrupts ocean currents, things could get very chilly round here, reports Bill McGuire
Global geophysical events, such as huge tidal waves or volcanic super-eruptions, could devastate the planet - so why doesn't anybody care?