Source NASA Goddard Institute for Space Studies — GISTEMP v4 · Snapshot downloaded Nov 2026 · data file Annual mean (Jan–Dec) land-ocean temperature anomaly from NASA GISS Surface Temperature Analysis v4 (GISTEMP).
B · Sonification engine
Keyboard: Space play/pause · ←/→ step
C · What you're hearing
Data point
1880
Value
-0.17 °C vs 1951–1980
Sound
A3 · 220 Hz · sine
Loudness
35%
In 1880 the value was -0.17 °C vs 1951–1980, at 18% of this period's range — so the pitch sits low. This is the first point.