Carbon Sky Index | Activity Spikes

Activity Spikes

Anomalous activity patterns detected across private aviation, updated daily.

Last updated March 30th 2026 at 1:34 PM UTC

CO₂ Above Baseline

6,175t CO₂

Clusters Detected

High Severity

Signals Within

19 Signals

Airport cluster

Medium2 signalsSeasonal

DevelopingDetected Mar 30, 2026

Bozeman (KBZN) — emissions 89% above 4-week average (2,419t vs 1,280t)

+89%(2,419t vs 1,280t avg CO₂)

Route

LowSeasonal

NewDetected Mar 30, 2026

Teterboro (KTEB) → Chicago (KMDW) — 34% emissions surge this week (107t CO₂)

+34%(107t vs 80t avg CO₂)

Airport cluster

Medium2 signalsSeasonal

DevelopingDetected Mar 27, 2026

Bozeman (KBZN) — emissions 96% above 4-week average (2,210t vs 1,128t)

+96%(2,210t vs 1,128t avg CO₂)

Route

Low

Detected Mar 27, 2026

Teterboro (KTEB) → Salt Lake City (KSLC) — 80% emissions surge this week (123t CO₂)

+80%(123t vs 68t avg CO₂)

Airport

Low

DevelopingDetected Mar 27, 2026

Nashville (KBNA) — emissions 42% above 4-week average (1,722t vs 1,213t)

+42%(1,722t vs 1,213t avg CO₂)

Route

Low

Detected Mar 27, 2026

Dallas (KDAL) → Las Vegas (KLAS) — 146% emissions surge this week (105t CO₂)

+146%(105t vs 43t avg CO₂)

Airport

High

Detected Mar 26, 2026

Unusual activity at Nashville airport — CO₂ emissions up 37% above baseline

+37%(1,652t vs 1,202t avg CO₂)

Airport

HighSeasonal

Detected Mar 26, 2026

Unusual activity at Bozeman airport — CO₂ emissions up 50% above baseline

+50%(1,718t vs 1,145t avg CO₂)

Route

MediumAircraft mix shift

Detected Mar 26, 2026

Spike on San Jose (KSJC) → Teterboro (KTEB) — CO₂ emissions up 80% above baseline

+80%(214t vs 119t avg CO₂)

Airport

Medium

Detected Mar 26, 2026

Unusual activity at London airport — CO₂ emissions up 32% above baseline

+32%(1,075t vs 812t avg CO₂)