World
Earth and weather
Weather, climate, volcanoes and ice: how the planet's air and surface behave, with the record temperatures and the years they happened.
Fact files
All topics ›Antarctica
58 metres
Sea level rise if the Antarctic Ice Sheet melted
Lightning
30,000 °C
Heat of the air in a lightning channel
Mount Tambora
10 April 1815
Climax of the eruption
The seasons
23.4 degrees
Tilt of Earth's axis
Hail
8.0 inches
Diameter of the US record hailstone, Vivian, South Dakota, 2010
Tornadoes
about 1,200 per year
Tornadoes in the United States, recent years