N49HM
Bombardier Learjet 45
United States
GRI (Central Nebraska Regional Airport, Grand Island)

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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 increasing vs prior period

Emissions Overview

6.8
Tons CO2 This Month
Below Average0.6× avg for Learjet 45
11.5
Tons CO2 YTD
Below Average0.3× avg for Learjet 45
59.1
CO2 Tons Since 2025
Below Average0.3× avg for Learjet 45
Emissions Intensity0.00t CO₂/nmBelow Average0.7× avg for Learjet 45
35.9 tons CO2 in selected period

2026 pace: On track for approximately 35t CO₂ by year end · ↓ 28% vs full year 2025 (48t)

Flight Patterns & Behaviour

Emissions up 54% vs prior period, driven by Grand Island → Morristown

33t
Period total CO₂
3.0t
Avg per flight
11
Flights
Moderately Concentrated3 routes account for 51% of total emissions
Highest emission route
Grand Island → Morristown
6.8t CO₂ total · 0.0063t 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
54%
22t → 33t CO₂
Intensity
49%
0.0081 → 0.0041 t CO₂/nm
New Routes
9
31t CO₂ combined
Dropped Routes
3
Prior period only
Avg per Flight
16%
3.6t → 3.0t
Flight Count
5
6 → 11 flights

Route and airport counts may include data processing artefacts.

Spikes

Significant deviations from this aircraft's baseline in the selected period.

CO₂ Above Baseline

24t

Signals Detected

5

Highest Severity

High

Aircraft
High
New4 Jun – 10 Jun 2025
Elevated activity period · 3 flights in 6 days vs baseline of 0
Contributed approximately 12t CO₂ to period total — 35% of period emissions
Aircraft
Medium
New14 Jul – 20 Jul 2025
Elevated activity period · 1 flights in 6 days vs baseline of 0
Contributed approximately 2t CO₂ to period total — 5% of period emissions
Aircraft
Medium
Historical5 Jun – 20 Jul 2025
46-day inactive period
1.7t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical20 Jul – 29 Oct 2025
101-day inactive period
2.1t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical29 Oct – 11 Dec 2025
43-day inactive period
6.7t CO₂ in the 7 days following resumption
Recent Flights
Mar 23, 20266.8t CO₂
KGRIGrand Island
KMMUMorristown
1,243 miles3h 48m
Jan 19, 20262.8t CO₂
KHNDLas Vegas
KEARKearney
931 miles1h 44m
Jan 9, 20261.4t CO₂
KDALDallas
KHSIHastings
543 miles1h 1m
Dec 18, 20252.7t CO₂
KPHXPhoenix
KEARKearney
873 miles1h 41m
View Details
Dec 12, 20252.0t CO₂
KRBDDallas
KHSIHastings
554 miles1h 19m
View Details
Dec 11, 20252.1t CO₂
KDFWDallas-Ft Worth
KHSIHastings
538 miles1h 21m
View Details
Oct 29, 20252.1t CO₂
KSLCSalt Lake City
KEARKearney
678 miles1h 21m
View Details
Jul 20, 20251.7t CO₂
KDFWDallas-Ft Worth
KHSIHastings
538 miles1h 9m
View Details
Jun 5, 20251.7t CO₂
KEGTWellington
KIAHHouston
520 miles1h 10m
View Details
Jun 4, 20255.3t CO₂
KLWMLawrence
KGRIGrand Island
1,398 miles3h 1m
View Details
Jun 4, 20254.7t CO₂
KGRIGrand Island
KBEDBedford
1,391 miles2h 43m
View Details
Apr 27, 20253.3t CO₂
KFTYAtlanta
KAUHAurora
886 miles1h 60m
View Details
Feb 12, 20251.9t CO₂
KSLCSalt Lake City
KEARKearney
678 miles1h 16m
View Details
Feb 2, 20251.8t CO₂
KFTWFort Worth
KHSIHastings
541 miles1h 13m
View Details
Jan 19, 20253.6t CO₂
KGRIGrand Island
KVGTLas Vegas
967 miles2h 10m
View Details
Jan 9, 20252.6t CO₂
KEARKearney
NaN miles1h 39m
View Details
Jan 8, 20258.3t CO₂
KFTYAtlanta
NaN miles4h 35m
View Details
Top Airports by Emissions
Grand Island

Grand Island

KGRI

Total CO₂

16.8t

Total Visits

3

Avg CO₂/visit

5.6t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Kearney

Kearney

KEAR

Total CO₂

7.6t

Total Visits

3

Avg CO₂/visit

2.5t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Hastings

Hastings

KHSI

Total CO₂

7.1t

Total Visits

4

Avg CO₂/visit

1.8t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Morristown

Morristown

KMMU

Total CO₂

6.8t

Total Visits

1

Avg CO₂/visit

6.8t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Lawrence

Lawrence

KLWM

Total CO₂

5.3t

Total Visits

1

Avg CO₂/visit

5.3t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Bedford

Bedford

KBED

Total CO₂

4.7t

Total Visits

1

Avg CO₂/visit

4.7t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 3
Top Routes by Emissions
Grand Island Morristown

KGRI to KMMU1,244 miles

Total Flights

1

Avg CO₂/Flight

6.8t

Total Emissions

6.8t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Lawrence Grand Island

KLWM to KGRI1,399 miles

Total Flights

1

Avg CO₂/Flight

5.3t

Total Emissions

5.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Grand Island Bedford

KGRI to KBED1,391 miles

Total Flights

1

Avg CO₂/Flight

4.7t

Total Emissions

4.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Dallas-Ft Worth Hastings

KDFW to KHSI538 miles

Total Flights

2

Avg CO₂/Flight

1.9t

Total Emissions

3.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Las Vegas Kearney

KHND to KEAR932 miles

Total Flights

1

Avg CO₂/Flight

2.8t

Total Emissions

2.8t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Phoenix Kearney

KPHX to KEAR874 miles

Total Flights

1

Avg CO₂/Flight

2.7t

Total Emissions

2.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2