Life & fun · September 21, 2026
WebGCM – a global climate model running in the browser on WebGPU
WebGCM – a global climate model running in the browser on WebGPU launched on September 21, 2026 with 6 votes, #1,245 of 8,095 launches that month and more than 75% of that year's launches.
In plain words
WebGCM is a fully functional global climate model that runs directly in web browsers using WebGPU graphics processing. It simulates atmospheric layers, ocean currents, clouds, ice, and weather patterns across a detailed representation of Earth's continents and terrain. Users can visualize different climate variables like wind, temperature, and precipitation in real time, track wind patterns with particles, view the planet from space, and save images of their observations. The simulation requires a modern browser with WebGPU support.
written from the facts on this page · September 2026
From the sources
A global climate model running live: a hydrostatic atmosphere with 27 levels on a geodesic C-grid, moist convection and clouds, a wind-driven two-layer ocean, sea ice, snow and soil on real continents with terrain. Every kernel runs on the graphics card through WebGPU. It picks up from a six-year spin-up at 64 subdivisions, about 41,000 cells 110 km across, where you can colour the globe by wind, temperature, pressure, rain, clouds, ice or ocean currents, follow the wind with particles, watch the planet from space, and save snapshots. Best in a browser with WebGPU (Chrome, Edge or Safari 26). Without it the model falls back to a slower CPU engine. The starting state is a 50 MB download.…from gcm.echorelay.net
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