N140HM
Bombardier Learjet 45
United States
KJWN (John C Tune Airport, Nashville)

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Viewing period:
Compared to: preceding 12 months · May 2024 – May 2025
May 2025 – Apr 2026·vs May 2024 – May 2025

Emissions Overview

22.3
Tons CO2 This Month
Above Average1.9× avg for Learjet 45
26.0
Tons CO2 YTD
Typical0.8× avg for Learjet 45
54.8
CO2 Tons Since 2025
Below Average0.3× avg for Learjet 45
Emissions Intensity0.00t CO₂/nmBelow Average0.7× avg for Learjet 45
46.0 tons CO2 in selected period

2026 pace: On track for approximately 78t CO₂ by year end · ↑ 171% vs full year 2025 (29t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 0.4t CO₂/month

0.4t
CO₂/month
1.6t
Avg per flight
3
Distinct routes
Highly Concentrated3 routes account for 100% of total emissions
Highest emission route
Seattle → San Jose
3.1t CO₂ total · 0.0050t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.2× country averageBelow Average

Subject to FAA oversight — no mandatory carbon reporting for private aviation

What's ChangedCompared to prior equivalent period
Emissions
Prior data unavailable
Intensity
Prior data unavailable
New Routes
3
5t CO₂ combined
Dropped Routes
0
Avg per Flight
Prior data unavailable
Flight Count
Prior data unavailable

Route and airport counts may include data processing artefacts.

Activity Signals

Recent Flights
Mar 25, 20260.6t CO₂
KJWNNashville
KBHMBirmingham
181 miles27m
Mar 25, 20261.2t CO₂
KBHMBirmingham
KJWNNashville
181 miles54m
Mar 20, 20263.1t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 52m

Top Airports by Emissions

Top Routes by Emissions