The Earth is a machine of rock, water, air, ice and life, driven by the Sun from above and by its own heat from below. Start with a handful of rocks and a weather map; climb through plate tectonics, earthquakes and volcanoes, rivers, glaciers and coasts, the atmosphere and the ocean, weather and the monsoon, to the physics of climate, the carbon cycle and the ice ages, and on to the evidence, the models, the impacts and the choices of a warming world. Every model on a plate runs in the page; every measurement of the real Earth names its record and source.
A Curionode course, for learning. It explains hazards and how to read official warnings, but it is not safety advice: in an earthquake, flood, typhoon or eruption follow your local authorities. It presents the physics, the evidence and the options of climate change, and leaves the choices to the reader. Nothing on this site is fetched from a third party, and your progress stays in your browser. Records: NOAA Global Monitoring Laboratory (Mauna Loa CO₂), NASA GISS (GISTEMP), NOAA NCEI Paleoclimatology (EPICA, Vostok), the LR04 benthic stack, NSIDC sea-ice index, NOAA and CSIRO sea level, NOAA ENSO indices, the USGS earthquake catalogue, Natural Earth coastlines and Bird's plate boundaries. Each chart names its record and the date of the snapshot.