GITNUXREPORT 2026

Global Airline Industry Statistics

The global airline industry saw strong recovery and profitability in 2023, while facing rising costs and emissions.

How We Build This Report

01
Primary Source Collection

Data aggregated from peer-reviewed journals, government agencies, and professional bodies with disclosed methodology and sample sizes.

02
Editorial Curation

Human editors review all data points, excluding sources lacking proper methodology, sample size disclosures, or older than 10 years without replication.

03
AI-Powered Verification

Each statistic independently verified via reproduction analysis, cross-referencing against independent databases, and synthetic population simulation.

04
Human Cross-Check

Final human editorial review of all AI-verified statistics. Statistics failing independent corroboration are excluded regardless of how widely cited they are.

Statistics that could not be independently verified are excluded regardless of how widely cited they are elsewhere.

Our process →

Key Statistics

Statistic 1

In 2023, global airline industry revenue reached $964 billion, marking a 24% increase from 2022.

Statistic 2

Global airlines reported a net profit of $30.5 billion in 2023, with an average net margin of 3.2%.

Statistic 3

Passenger yield for global airlines improved by 9% year-on-year in 2023 to 14.4 US cents per RPK.

Statistic 4

Cargo yield across global airlines rose to 42.2 US cents per CFTK in 2023, up 38% from 2022.

Statistic 5

Global airline operating costs increased by 18.5% in 2023, driven by fuel prices averaging $101 per barrel.

Statistic 6

Global airline net profit forecast for 2024 is $30.5 billion with 3.1% net margin.

Statistic 7

Cost per ASK rose 14.8% in 2023 to 10.1 US cents due to labor and maintenance hikes.

Statistic 8

Return on Invested Capital (ROIC) for airlines averaged 7.6% in 2023.

Statistic 9

Passenger revenue totaled $711 billion in 2023, 74% of total airline revenues.

Statistic 10

Ancillary revenue per passenger grew to $21 globally in 2023.

Statistic 11

Global airlines' EBIT margin reached 4.9% in 2023.

Statistic 12

Fuel accounted for 28.4% of total operating costs in 2023.

Statistic 13

Labor costs rose 12% year-on-year to 24% of total expenses in 2023.

Statistic 14

Depreciation and amortization costs increased 15% to $80 billion in 2023.

Statistic 15

Cash reserves held by airlines totaled $250 billion at end-2023.

Statistic 16

Debt levels for airlines dropped to 45% of revenues in 2023 from 55% in 2022.

Statistic 17

Equity ratio improved to 35% for global carriers in 2023.

Statistic 18

Cargo revenues peaked at $130 billion in 2022 but fell 20% to $104 billion in 2023.

Statistic 19

Average ticket price globally was $380 in economy class for 2023.

Statistic 20

Full-year dividend payouts by airlines totaled $12 billion in 2023.

Statistic 21

Industry capital expenditure forecasted at $180 billion for 2024.

Statistic 22

Insurance premiums for airlines rose 8% to $15 billion in 2023.

Statistic 23

Revenue per Employee averaged $450,000 globally in 2023.

Statistic 24

Tax payments by airlines totaled $70 billion in 2023.

Statistic 25

Share buybacks by listed airlines reached $8 billion in 2023.

Statistic 26

The global commercial aircraft fleet stood at 28,400 aircraft in operation as of December 2023.

Statistic 27

Narrowbody aircraft accounted for 68% of the global fleet in 2023, totaling 19,300 units.

Statistic 28

Widebody aircraft deliveries reached 500 units in 2023, led by Boeing 787 and Airbus A350.

Statistic 29

Average fleet age globally was 12.5 years in 2023, with North America at 14.2 years.

Statistic 30

Global airline capacity, measured in ASKs, is projected to grow 4.3% annually through 2043.

Statistic 31

Regional jets comprised 15% of the active fleet in 2023, around 4,260 aircraft.

Statistic 32

Boeing delivered 528 aircraft in 2023, while Airbus delivered 735.

Statistic 33

Orders for new aircraft totaled 2,700 units in 2023, valued at $250 billion list price.

Statistic 34

MRO market for airlines projected to reach $103 billion by 2033.

Statistic 35

Single-aisle aircraft will represent 59% of fleet growth to 2042.

Statistic 36

Active freighter fleet numbered 2,100 aircraft worldwide in 2023.

Statistic 37

Airbus A320neo family led deliveries with 450 units in 2023.

Statistic 38

Retirement of older aircraft totaled 650 units in 2023, mostly Boeing 737 Classics.

Statistic 39

Twin-aisle fleet grew by 2.5% to 3,400 aircraft in 2023.

Statistic 40

Engine MRO demand projected at $45 billion annually by 2033.

Statistic 41

Global fleet utilization averaged 11.2 hours per day in 2023.

Statistic 42

Embraer E-Jet family fleet active at 1,400 units in 2023.

Statistic 43

ATR turboprops numbered 1,100 in service globally end-2023.

Statistic 44

Airframe MRO spending hit $55 billion in 2023.

Statistic 45

Projected fleet deliveries: 43,000 new aircraft needed by 2043.

Statistic 46

Bombardier CRJ series fleet at 1,500 active aircraft in 2023.

Statistic 47

Boeing 737 MAX deliveries: 387 units in 2023.

Statistic 48

Component MRO market valued at $28 billion in 2023.

Statistic 49

Line maintenance visits totaled 12 million globally in 2023.

Statistic 50

Fleet growth rate projected at 3.2% CAGR to 2034.

Statistic 51

In 2023, total passenger numbers carried by airlines worldwide hit 4.6 billion, up 36.5% from 2022.

Statistic 52

Revenue Passenger Kilometers (RPKs) grew by 37.8% globally in 2023 to 8.4 trillion.

Statistic 53

Available Seat Kilometers (ASKs) expanded by 27.8% worldwide in 2023 to 10.0 trillion.

Statistic 54

Global load factor reached 83.7% in 2023, the highest in over a decade.

Statistic 55

International RPKs surged 47.1% in 2023, while domestic grew 24.9%.

Statistic 56

Asia-Pacific airlines carried 1.2 billion passengers in 2023, 26% of global total.

Statistic 57

Europe saw 1.05 billion passengers in 2023, with load factor at 84.5%.

Statistic 58

North American RPKs grew 20.3% in 2023 to 1.8 trillion.

Statistic 59

Leisure travel accounted for 65% of global passenger demand in Q4 2023.

Statistic 60

International connectivity recovered to 92% of 2019 levels by end-2023.

Statistic 61

Middle East carriers reported 4.1 billion RPKs in 2023, up 40.2%.

Statistic 62

Latin America passenger traffic grew 22% to 550 million passengers in 2023.

Statistic 63

Premium cabin load factor hit 82% globally in 2023.

Statistic 64

Business class demand recovered to 85% of 2019 levels by Q4 2023.

Statistic 65

Low-cost carriers held 32% market share by ASKs in 2023.

Statistic 66

Africa airlines carried 120 million passengers in 2023, up 30%.

Statistic 67

Domestic load factors averaged 82.3% globally in 2023.

Statistic 68

Transatlantic capacity reached 105% of 2019 levels by December 2023.

Statistic 69

Asia-Pacific intra-regional RPKs grew 35% in 2023.

Statistic 70

Total seats offered by airlines increased 28% to 12.5 billion in 2023.

Statistic 71

Global flight frequency hit 38 million departures in 2023.

Statistic 72

Economy class occupied 85% of total seats flown in 2023.

Statistic 73

Charter flights accounted for 8% of total capacity in 2023.

Statistic 74

Peak daily flights worldwide averaged 105,000 in summer 2023.

Statistic 75

There were zero fatal accidents involving commercial jet aircraft worldwide in 2023.

Statistic 76

The global jet accident rate was 0.81 per million departures in 2023, down from 1.30 in 2022.

Statistic 77

Aviation fatalities totaled 134 in 2023, primarily from turboprop incidents in Nepal and elsewhere.

Statistic 78

Loss of hull events for commercial airlines dropped to 22 in 2023 from 37 in 2022.

Statistic 79

Runway excursions accounted for 22% of global aviation accidents in 2023.

Statistic 80

Global all-accident rate for IATA members was 0.80 per million sectors in 2023.

Statistic 81

Turboprop accident rate stood at 1.09 per million departures in 2023.

Statistic 82

Controlled Flight Into Terrain (CFIT) incidents declined 15% in 2023.

Statistic 83

Cybersecurity incidents in aviation rose 30% year-on-year to 120 reported cases in 2023.

Statistic 84

Bird strikes reported globally numbered 25,000 in 2023, up 5%.

Statistic 85

IOSA registered airlines achieved 99.01% compliance rate in 2023 audits.

Statistic 86

Loss of Control In-Flight (LOC-I) rate was 0.09 per million departures.

Statistic 87

Global runway safety incidents totaled 450 in 2023.

Statistic 88

Drone sightings near airports reached 6,500 reports worldwide in 2023.

Statistic 89

Fatigue-related incidents reported by pilots increased 10% in 2023.

Statistic 90

Human error contributed to 70% of aviation incidents in 2023.

Statistic 91

Windshear encounters reported 1,200 times globally in 2023.

Statistic 92

Airport security screening processed 4.6 billion passengers in 2023.

Statistic 93

Volcanic ash diversions affected 50 flights in 2023.

Statistic 94

TCAS Resolution Advisories triggered 1.5 million times worldwide.

Statistic 95

Safety audits conducted on 450 airlines under IOSA in 2023.

Statistic 96

Mid-air collision risk reduced to 1 in 100 million flights.

Statistic 97

Baggage mishandling rate fell to 6.9 per 1,000 passengers.

Statistic 98

Laser attacks on aircraft reported 13,000 incidents in 2023.

Statistic 99

Ground damage incidents to aircraft numbered 45,000 in 2023.

Statistic 100

Global aviation CO2 emissions from airlines reached 1.03 billion tonnes in 2023, up 12% from 2022.

Statistic 101

Sustainable Aviation Fuel (SAF) production hit 600,000 tonnes globally in 2023, only 0.1% of jet fuel demand.

Statistic 102

Airlines' fuel burn efficiency improved by 1.5% per year on average from 2019-2023.

Statistic 103

Net-zero emissions pledge by 2050 signed by 325 airlines covering 86% of international air traffic.

Statistic 104

Noise from aircraft operations reduced by 65% globally since 2005 per ICAO standards.

Statistic 105

Airlines emitted 2.5% of global man-made CO2 in 2023, or 1.03 Gt.

Statistic 106

SAF accounted for 0.2% of total jet fuel consumption in 2023.

Statistic 107

Fleet modernization reduced fuel burn by 25% since 2005 on average.

Statistic 108

CORSIA scheme covered 85% of international aviation emissions in 2023.

Statistic 109

Water usage by airlines for operations totaled 1.2 billion cubic meters in 2023.

Statistic 110

Jet fuel demand rebounded to 99 million tonnes monthly average in 2023.

Statistic 111

57 airlines committed to net-zero by 2050 under IATA's Fly Net Zero.

Statistic 112

CO2 intensity per RPK fell 15% from 2019 levels by 2023.

Statistic 113

Electric aircraft certifications expected for short-haul by 2030.

Statistic 114

Nitrogen oxide emissions standards met by 95% of global fleet in 2023.

Statistic 115

Biofuel blends used in 5,000 commercial flights in 2023.

Statistic 116

Aircraft recycling processed 200 airframes in 2023.

Statistic 117

Winglet retrofits saved 1.5 billion liters of fuel annually.

Statistic 118

Global aviation waste generated 5.2 million tonnes in 2023.

Statistic 119

Hydrogen propulsion tested in 20 demonstration flights in 2023.

Trusted by 500+ publications
Harvard Business ReviewThe GuardianFortune+497
In a year where the skies saw zero fatal jet accidents and global passenger numbers soared to 4.6 billion, the airline industry's remarkable 2023 recovery was built on razor-thin profits, rising costs, and a pressing race toward a sustainable future.

Key Takeaways

  • In 2023, global airline industry revenue reached $964 billion, marking a 24% increase from 2022.
  • Global airlines reported a net profit of $30.5 billion in 2023, with an average net margin of 3.2%.
  • Passenger yield for global airlines improved by 9% year-on-year in 2023 to 14.4 US cents per RPK.
  • In 2023, total passenger numbers carried by airlines worldwide hit 4.6 billion, up 36.5% from 2022.
  • Revenue Passenger Kilometers (RPKs) grew by 37.8% globally in 2023 to 8.4 trillion.
  • Available Seat Kilometers (ASKs) expanded by 27.8% worldwide in 2023 to 10.0 trillion.
  • The global commercial aircraft fleet stood at 28,400 aircraft in operation as of December 2023.
  • Narrowbody aircraft accounted for 68% of the global fleet in 2023, totaling 19,300 units.
  • Widebody aircraft deliveries reached 500 units in 2023, led by Boeing 787 and Airbus A350.
  • There were zero fatal accidents involving commercial jet aircraft worldwide in 2023.
  • The global jet accident rate was 0.81 per million departures in 2023, down from 1.30 in 2022.
  • Aviation fatalities totaled 134 in 2023, primarily from turboprop incidents in Nepal and elsewhere.
  • Global aviation CO2 emissions from airlines reached 1.03 billion tonnes in 2023, up 12% from 2022.
  • Sustainable Aviation Fuel (SAF) production hit 600,000 tonnes globally in 2023, only 0.1% of jet fuel demand.
  • Airlines' fuel burn efficiency improved by 1.5% per year on average from 2019-2023.

The global airline industry saw strong recovery and profitability in 2023, while facing rising costs and emissions.

Financial Metrics

1In 2023, global airline industry revenue reached $964 billion, marking a 24% increase from 2022.
Verified
2Global airlines reported a net profit of $30.5 billion in 2023, with an average net margin of 3.2%.
Verified
3Passenger yield for global airlines improved by 9% year-on-year in 2023 to 14.4 US cents per RPK.
Verified
4Cargo yield across global airlines rose to 42.2 US cents per CFTK in 2023, up 38% from 2022.
Directional
5Global airline operating costs increased by 18.5% in 2023, driven by fuel prices averaging $101 per barrel.
Single source
6Global airline net profit forecast for 2024 is $30.5 billion with 3.1% net margin.
Verified
7Cost per ASK rose 14.8% in 2023 to 10.1 US cents due to labor and maintenance hikes.
Verified
8Return on Invested Capital (ROIC) for airlines averaged 7.6% in 2023.
Verified
9Passenger revenue totaled $711 billion in 2023, 74% of total airline revenues.
Directional
10Ancillary revenue per passenger grew to $21 globally in 2023.
Single source
11Global airlines' EBIT margin reached 4.9% in 2023.
Verified
12Fuel accounted for 28.4% of total operating costs in 2023.
Verified
13Labor costs rose 12% year-on-year to 24% of total expenses in 2023.
Verified
14Depreciation and amortization costs increased 15% to $80 billion in 2023.
Directional
15Cash reserves held by airlines totaled $250 billion at end-2023.
Single source
16Debt levels for airlines dropped to 45% of revenues in 2023 from 55% in 2022.
Verified
17Equity ratio improved to 35% for global carriers in 2023.
Verified
18Cargo revenues peaked at $130 billion in 2022 but fell 20% to $104 billion in 2023.
Verified
19Average ticket price globally was $380 in economy class for 2023.
Directional
20Full-year dividend payouts by airlines totaled $12 billion in 2023.
Single source
21Industry capital expenditure forecasted at $180 billion for 2024.
Verified
22Insurance premiums for airlines rose 8% to $15 billion in 2023.
Verified
23Revenue per Employee averaged $450,000 globally in 2023.
Verified
24Tax payments by airlines totaled $70 billion in 2023.
Directional
25Share buybacks by listed airlines reached $8 billion in 2023.
Single source

Financial Metrics Interpretation

The industry finally cleared the pandemic's turbulent skies to pocket a healthy profit, but it's flying on the narrowest of margins where every extra bag fee and jet fuel price spike feels like a gut punch to the balance sheet.

Fleet and Capacity

1The global commercial aircraft fleet stood at 28,400 aircraft in operation as of December 2023.
Verified
2Narrowbody aircraft accounted for 68% of the global fleet in 2023, totaling 19,300 units.
Verified
3Widebody aircraft deliveries reached 500 units in 2023, led by Boeing 787 and Airbus A350.
Verified
4Average fleet age globally was 12.5 years in 2023, with North America at 14.2 years.
Directional
5Global airline capacity, measured in ASKs, is projected to grow 4.3% annually through 2043.
Single source
6Regional jets comprised 15% of the active fleet in 2023, around 4,260 aircraft.
Verified
7Boeing delivered 528 aircraft in 2023, while Airbus delivered 735.
Verified
8Orders for new aircraft totaled 2,700 units in 2023, valued at $250 billion list price.
Verified
9MRO market for airlines projected to reach $103 billion by 2033.
Directional
10Single-aisle aircraft will represent 59% of fleet growth to 2042.
Single source
11Active freighter fleet numbered 2,100 aircraft worldwide in 2023.
Verified
12Airbus A320neo family led deliveries with 450 units in 2023.
Verified
13Retirement of older aircraft totaled 650 units in 2023, mostly Boeing 737 Classics.
Verified
14Twin-aisle fleet grew by 2.5% to 3,400 aircraft in 2023.
Directional
15Engine MRO demand projected at $45 billion annually by 2033.
Single source
16Global fleet utilization averaged 11.2 hours per day in 2023.
Verified
17Embraer E-Jet family fleet active at 1,400 units in 2023.
Verified
18ATR turboprops numbered 1,100 in service globally end-2023.
Verified
19Airframe MRO spending hit $55 billion in 2023.
Directional
20Projected fleet deliveries: 43,000 new aircraft needed by 2043.
Single source
21Bombardier CRJ series fleet at 1,500 active aircraft in 2023.
Verified
22Boeing 737 MAX deliveries: 387 units in 2023.
Verified
23Component MRO market valued at $28 billion in 2023.
Verified
24Line maintenance visits totaled 12 million globally in 2023.
Directional
25Fleet growth rate projected at 3.2% CAGR to 2034.
Single source

Fleet and Capacity Interpretation

While the industry busily trades in its aging fleet for shiny new single-aisles like a teenager with a driver's license eyeing a sports car, the $250 billion shopping spree is really just a down payment on keeping our airborne offices running 11 hours a day, all while the mechanic's bill balloons toward a truly sobering $100 billion.

Passenger Traffic and Demand

1In 2023, total passenger numbers carried by airlines worldwide hit 4.6 billion, up 36.5% from 2022.
Verified
2Revenue Passenger Kilometers (RPKs) grew by 37.8% globally in 2023 to 8.4 trillion.
Verified
3Available Seat Kilometers (ASKs) expanded by 27.8% worldwide in 2023 to 10.0 trillion.
Verified
4Global load factor reached 83.7% in 2023, the highest in over a decade.
Directional
5International RPKs surged 47.1% in 2023, while domestic grew 24.9%.
Single source
6Asia-Pacific airlines carried 1.2 billion passengers in 2023, 26% of global total.
Verified
7Europe saw 1.05 billion passengers in 2023, with load factor at 84.5%.
Verified
8North American RPKs grew 20.3% in 2023 to 1.8 trillion.
Verified
9Leisure travel accounted for 65% of global passenger demand in Q4 2023.
Directional
10International connectivity recovered to 92% of 2019 levels by end-2023.
Single source
11Middle East carriers reported 4.1 billion RPKs in 2023, up 40.2%.
Verified
12Latin America passenger traffic grew 22% to 550 million passengers in 2023.
Verified
13Premium cabin load factor hit 82% globally in 2023.
Verified
14Business class demand recovered to 85% of 2019 levels by Q4 2023.
Directional
15Low-cost carriers held 32% market share by ASKs in 2023.
Single source
16Africa airlines carried 120 million passengers in 2023, up 30%.
Verified
17Domestic load factors averaged 82.3% globally in 2023.
Verified
18Transatlantic capacity reached 105% of 2019 levels by December 2023.
Verified
19Asia-Pacific intra-regional RPKs grew 35% in 2023.
Directional
20Total seats offered by airlines increased 28% to 12.5 billion in 2023.
Single source
21Global flight frequency hit 38 million departures in 2023.
Verified
22Economy class occupied 85% of total seats flown in 2023.
Verified
23Charter flights accounted for 8% of total capacity in 2023.
Verified
24Peak daily flights worldwide averaged 105,000 in summer 2023.
Directional

Passenger Traffic and Demand Interpretation

Despite the pervasive grousing about delays and sardine-tin seating, humanity in 2023 essentially declared, "We are so back," cramming into planes with such zealous efficiency that we achieved our most sardine-like load factor in over a decade while chasing sun and leisure at a rate that would make any business traveler weep.

Safety and Security

1There were zero fatal accidents involving commercial jet aircraft worldwide in 2023.
Verified
2The global jet accident rate was 0.81 per million departures in 2023, down from 1.30 in 2022.
Verified
3Aviation fatalities totaled 134 in 2023, primarily from turboprop incidents in Nepal and elsewhere.
Verified
4Loss of hull events for commercial airlines dropped to 22 in 2023 from 37 in 2022.
Directional
5Runway excursions accounted for 22% of global aviation accidents in 2023.
Single source
6Global all-accident rate for IATA members was 0.80 per million sectors in 2023.
Verified
7Turboprop accident rate stood at 1.09 per million departures in 2023.
Verified
8Controlled Flight Into Terrain (CFIT) incidents declined 15% in 2023.
Verified
9Cybersecurity incidents in aviation rose 30% year-on-year to 120 reported cases in 2023.
Directional
10Bird strikes reported globally numbered 25,000 in 2023, up 5%.
Single source
11IOSA registered airlines achieved 99.01% compliance rate in 2023 audits.
Verified
12Loss of Control In-Flight (LOC-I) rate was 0.09 per million departures.
Verified
13Global runway safety incidents totaled 450 in 2023.
Verified
14Drone sightings near airports reached 6,500 reports worldwide in 2023.
Directional
15Fatigue-related incidents reported by pilots increased 10% in 2023.
Single source
16Human error contributed to 70% of aviation incidents in 2023.
Verified
17Windshear encounters reported 1,200 times globally in 2023.
Verified
18Airport security screening processed 4.6 billion passengers in 2023.
Verified
19Volcanic ash diversions affected 50 flights in 2023.
Directional
20TCAS Resolution Advisories triggered 1.5 million times worldwide.
Single source
21Safety audits conducted on 450 airlines under IOSA in 2023.
Verified
22Mid-air collision risk reduced to 1 in 100 million flights.
Verified
23Baggage mishandling rate fell to 6.9 per 1,000 passengers.
Verified
24Laser attacks on aircraft reported 13,000 incidents in 2023.
Directional
25Ground damage incidents to aircraft numbered 45,000 in 2023.
Single source

Safety and Security Interpretation

While commercial jet safety reached an impressive new milestone in 2023, the persistent rise in cyber threats, drones, and human-factor issues reminds us that the industry's vigilance must now extend far beyond the tarmac.

Sustainability and Environment

1Global aviation CO2 emissions from airlines reached 1.03 billion tonnes in 2023, up 12% from 2022.
Verified
2Sustainable Aviation Fuel (SAF) production hit 600,000 tonnes globally in 2023, only 0.1% of jet fuel demand.
Verified
3Airlines' fuel burn efficiency improved by 1.5% per year on average from 2019-2023.
Verified
4Net-zero emissions pledge by 2050 signed by 325 airlines covering 86% of international air traffic.
Directional
5Noise from aircraft operations reduced by 65% globally since 2005 per ICAO standards.
Single source
6Airlines emitted 2.5% of global man-made CO2 in 2023, or 1.03 Gt.
Verified
7SAF accounted for 0.2% of total jet fuel consumption in 2023.
Verified
8Fleet modernization reduced fuel burn by 25% since 2005 on average.
Verified
9CORSIA scheme covered 85% of international aviation emissions in 2023.
Directional
10Water usage by airlines for operations totaled 1.2 billion cubic meters in 2023.
Single source
11Jet fuel demand rebounded to 99 million tonnes monthly average in 2023.
Verified
1257 airlines committed to net-zero by 2050 under IATA's Fly Net Zero.
Verified
13CO2 intensity per RPK fell 15% from 2019 levels by 2023.
Verified
14Electric aircraft certifications expected for short-haul by 2030.
Directional
15Nitrogen oxide emissions standards met by 95% of global fleet in 2023.
Single source
16Biofuel blends used in 5,000 commercial flights in 2023.
Verified
17Aircraft recycling processed 200 airframes in 2023.
Verified
18Winglet retrofits saved 1.5 billion liters of fuel annually.
Verified
19Global aviation waste generated 5.2 million tonnes in 2023.
Directional
20Hydrogen propulsion tested in 20 demonstration flights in 2023.
Single source

Sustainability and Environment Interpretation

While the aviation industry’s decarbonization efforts are taking ambitious, clear-eyed steps on the runway, with fleet modernization and efficiency gains, its flight plan is still dangerously idling on the tarmac of good intentions, as evidenced by soaring emissions dramatically outpacing the mere 0.2% of sustainable fuel actually powering its journey.