Last episode in Ben Fogle's latest series which examines our ever changing climate and the extreme weather which seems to be becoming more and more of a regular occurrence. In the final programme, he discovers how and why earthquakes wreak so much havoc on our planet. They have been around as long as the planet itself, and begin when the Earth's crust moves which leads to sudden and violent shaking. Lucky for us, we don't have too many moving plates on this side of the world, so if you ever think you may be feeling one, you're probably just passing wind.