CSI Coverage

Global private aviation activity

Where Carbon Sky Index tracks business and private aircraft over the last 90 days.

Aircraft tracked

22,581

Flights (90 days)

431,685

Countries covered

151

CO₂ est. (90 days)

1.6Mt

Ranked by private and business aviation departures from each country over the last 90 days.

Top countries by activity (90 days)

RankCountryShare
1United States320,6951.1 Mt80.4%
2United Kingdom9,66646 kt2.4%
3France9,23632 kt2.3%
4Canada9,06037 kt2.3%
5Germany7,73519 kt1.9%
6Spain6,23025 kt1.6%
7Italy5,47218 kt1.4%
8Brazil4,64513 kt1.2%
9Switzerland4,51316 kt1.1%
10Mexico4,34612 kt1.1%
11Australia3,61711 kt0.9%
12India2,3819 kt0.6%
13Netherlands1,7556 kt0.4%
14Austria1,6565 kt0.4%
15Belgium1,5374 kt0.4%
16Bahamas1,5025 kt0.4%
17Czechia1,2994 kt0.3%
18Sweden1,1493 kt0.3%
19Japan1,14413 kt0.3%
20Poland1,0023 kt0.3%

Flights with unresolved origin country are excluded from this ranking. Share is calculated as the country’s flight count divided by the total of resolved flights over the same window.

About this data

Each cell aggregates origin, destination, and great-circle midpoints from CSI’s tracked private and business aviation flights over the last 90 days. Cells are coloured by flight-point density. Emissions are calculated using the EUROCONTROL EMEP/EEA Guidebook 2023 LTO + cruise methodology.

Frequently Asked Questions

What does this map show?

Each cell on the map represents an ~11 km grid square. The colour shows the density of flight points (origin, destination, and route midpoint) from private and business aviation flights tracked by CSI over the last 90 days. Lime cells have the highest concentration of activity.

How often is this data updated?

The coverage snapshot refreshes daily at 04:00 UTC using a 90-day rolling window. Each refresh replaces the previous day's snapshot, so the map always reflects the most recent 90 days of tracked activity.

Why are some regions empty?

Most empty areas have no tracked private aviation activity. In rare cases, aircraft in those regions may not broadcast ADS-B signals — this can occur in certain oceanic corridors or where regulatory requirements differ.

What counts as "private aviation"?

Carbon Sky Index tracks business jets identified by ICAO aircraft type designator. Commercial airlines, scheduled charter, cargo, and military flights are excluded. See the full classification rules on the methodology page.

Can I access this data via API?

Yes — the coverage snapshot and full flight data are available on Pro and Enterprise plans. The /api/coverage endpoint is public and returns the latest density snapshot.

How is CO₂ calculated?

Emissions are estimated using the EUROCONTROL EMEP/EEA Guidebook 2023 LTO + cruise methodology, calibrated across aircraft types tracked in the CSI database. Figures are modelled estimates, not direct measurements.