Story / 3 Chapters — SonifySphere

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Receiving

CO₂ in the air · Keeling curve

1990 · 354 ppm

Challenges · 5 games

01 · Guess the Signal01 · Guess the Signal

Ear training quiz: identify atmospheric CO₂ signals by ear

Play Guess the SignalPlay Guess the Signal

01 / 05

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CO₂ data

NOAA Global Monitoring Laboratory

Mauna Loa Observatory · monthly mean

Earth image

NASA EPIC Team (DSCOVR)

epic.gsfc.nasa.gov

Type

Display: Planet Kosmos by Mads Rydahl, The Planet (planet.dk)

UI: Geist / Geist Mono (SIL OFL 1.1)

sonifysphere

Space Apps 2026 · The Earth Information Jukebox

Hero image: AI-generated illustration (ChatGPT), not a real person or a real photo of Earth · CO₂: NOAA GML Mauna Loa