Global Impact — A Data Essay

What travel really does to the planet — and for it.

Eight verified numbers, and honestly, some genuinely great news mixed in. Every figure sourced to a named study, agency, or index — no invented statistics, no doom for doom's sake. Scroll for the full picture.

01 — Scale
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Tourism's true carbon footprint is bigger than its image.

A full lifecycle accounting — transport, accommodation, food, retail, and the goods tourists buy — put global tourism at roughly 8% of world greenhouse gas emissions in 2019, nearly four times earlier, narrower estimates. Bigger number, sure — but also a bigger lever to pull. That's the whole point of this page.

Tourism's share of global GHG emissions relative to the whole All other global emissions — 92% Travel & tourism — 8%
Lenzen, M. et al. (2018), "The carbon footprint of global tourism," Nature Climate Change. Coverage: Carbon Brief; follow-up analysis: Sun et al., Nature Communications (2024).
02 — Aviation's Real Weight
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Aviation's warming effect is bigger than its CO₂ number.

Flying produces about 2.5% of global CO₂ emissions — but roughly 4% of total human-caused warming to date, because contrails and other non-CO₂ effects account for roughly two-thirds of aviation's net climate impact.

Aviation's CO2 share versus its share of warming, including non-CO2 effects Share of warming (incl. non-CO₂) — ~4% Share of CO₂ emissions alone — ~2.5%
Source: Our World in Data — "What share of global CO₂ emissions come from aviation?" (Hannah Ritchie). Non-CO₂ effects: Lee et al. (2021), Atmospheric Environment.
03 — Where the Money Goes
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In many destinations, most tourist spending never stays.

Import-related "leakage" — foreign-owned hotels and airlines, imported food and goods, repatriated profit — runs 40–50% of gross tourism earnings for small developing economies, and has been estimated as high as 80% in parts of the Caribbean and 70% in Thailand.

Tourism dollar leakage out of destination economies $100 spent leaks abroad 40–80%+ stays local varies widely
UNCTAD leakage estimates (40–50% for small developing economies); UNWTO/UNEP-cited figures for Caribbean (~80%) and Thailand (~70%) via UN Ocean Atlas summary. Rates vary enormously by ownership structure — locally-owned operators leak far less.
04 — Cabin Class Matters

Where you sit changes your footprint.

Premium seats take up more of the aircraft's fuel-burn per passenger. ICAO's official calculator applies a simple 2× factor for premium versus economy; cabin-space-based models go further — first class can run roughly 4× an economy seat on the same flight.

Relative carbon footprint multiplier by cabin class on the same flight Economy 1.0× Premium 1.6× Business 2.9× First 4.0×
ICAO Carbon Emissions Calculator methodology (2× premium factor), icao.int/icec. Class multipliers (1.0/1.6/2.9/4.0×) per DEFRA 2023 cabin-space allocation, as used in commercial flight-carbon calculators.
05 — The Fuel That Isn't There Yet
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Sustainable aviation fuel is still a rounding error.

Despite years of airline pledges, sustainable aviation fuel (SAF) made up roughly 0.6% of total airline fuel consumption in 2025 — short of the industry's own 0.7% target for the year. Scaling SAF, not offsets, is what actually reduces flying's footprint.

Sustainable aviation fuel as a share of total aviation fuel, 2025 Conventional jet fuel — ~99.4% · SAF — ~0.6%
Industry SAF share reporting via ESG Today and industry SAF tracking coverage, 2025. Delta reports 23.4M gallons purchased in 2025 (+80% YoY) against a 10%-by-2030 target.
06 — Efficiency Gains Are Crawling
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Airlines are getting more efficient — just not fast enough.

Atmosfair's 2025 Airline Index found fleet-wide CO₂ efficiency improved about 7.5% between 2019 and 2024 — an average annual gain of only 1.5%, well below the 2% yearly improvement the industry agreed to internationally.

Actual airline efficiency gains versus the agreed industry target, 2019–2024 Agreed target — 2%/yr Actual 2019–24 average — 1.5%/yr
Source: atmosfair Airline Index 2025, presented at COP30 Belém.
07 — What Working Looks Like
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Conservation tourism, at continental scale — and it's working.

African Parks now manages more than 14.7 million hectares across 19 protected areas in 11 countries, reinvesting park revenue — much of it tourism-driven — directly into anti-poaching patrols, ranger payroll, and community programs, with a target of 30 million hectares by 2030. This is what "your trip actually helps" looks like at scale.

African Parks hectares under management, current versus 2030 target 14.7M ha managed today → 30M ha target by 2030
Source: African Parks — The African Parks Model.
08 — Pricing Conservation Directly
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A single permit can fund an entire park.

Rwanda's gorilla trekking permit costs $1,500 per person and directly funds Volcanoes National Park's operations — ranger salaries, veterinary intervention, anti-poaching patrols — while a 10% revenue-share flows to the communities bordering the park, raised from an initial 5%. One booking, an entire ecosystem of people rooting for you to show up.

Methodology

How we score operators

Every listing on TravelConservation carries a credibility score built from five weighted inputs — because the operators doing this right deserve to be found, and celebrated, faster than the ones just talking about it:

  1. Verifiable conservation spend — documented revenue reinvestment into habitat, anti-poaching, or species programs.
  2. Third-party certification quality — not just whether a cert exists, but what it actually audits and how independent the auditor is.
  3. Community revenue-share — disclosed, structured payments to local communities, not one-off donations.
  4. Transparency of claims — whether sustainability statements are sourced and specific, or vague and unverifiable.
  5. Operational footprint disclosure — whether the operator publishes its own emissions and waste data.

We are not a certification body and do not claim to verify outcomes we haven't independently audited. Every score comes with a public methodology note and a confidence level.

See the scored directory →