About 12,000 years ago there was a period of "volanic storms", so many erupted. The earth was unstable, rocking and rolling with earthquakes. Geologists know climate change destabilized the earth's crust. Now, after recent big quakes in Japan and Ecuador, with more under-reported quakes around the world, some scientists are beginning to wonder if climate is starting to destabilize geology again. We'll talk with one of the world's best geophysical hazards experts, Britain's Dr. Bill McGuire, author of "Waking the Giants". The aftershocks would be in the world's shaky financial system. Would a big quake in Los Angeles, Vancouver, or Tokyo be the trigger for a massive collapse in the global economy? That's why our second guest, Dr. Robert Yeats from Oregon, wrote his book, "Earthquake Time Bombs". We'll go into that risk in depth. Produced by Alex Smith for Radio Ecoshock.