How old is the earth? Where is the ice three miles thick? Why are volcanoes so dangerous? Where are the wettest and driest spots on the planet? Find the answers to these questions--and many more--in Earth by the numbers.

"A book of infographics"--Cover.

The earth's surface -- The changing globe -- What's inside? -- The deepest places -- Volcanoes -- Earthquakes -- Mountains -- Rivers and lakes -- Ice and snow -- Oceans -- Tornadoes -- Hurricanes -- Danger from the sky -- Danger from the sea -- Earth's extremes -- A warming planet -- The earth: a timeline.