ISSN 2330-717X

Global Tourism Carbon Footprint Quantified In World First

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For the first time, the world’s tourism footprint has been quantified across the supply chain – from flights to souvenirs – and revealed as a significant and growing contributor to greenhouse gas (GHG) emissions.

Small islands attract a disproportionate share of carbon emissions, considering their small populations, through international arrivals, while the United States is responsible for the majority of tourism-generated emissions overall.

The research – led by world-leading Integrated Sustainability Analysis supply-chain research group at the University of Sydney – found the global comprehensive tourism footprint of tourism-related greenhouse gas emissions is about four times greater than previous estimates, is growing faster than international trade and is already responsible for almost a tenth of global GHGs.

The researchers recommend financial and technical assistance could help share burdens such as global warming on winter sports, sea-level rise on low-lying islands and pollution impacts on exotic and vulnerable destinations.

A key recommendation: fly less and pay more, for example for carbon abatement.

A paper about the findings, ‘The carbon footprint of global tourism’, publishes today in the peer-reviewed journal Nature Climate Change.

Corresponding author Dr Arunima Malik, from the School of Physics, said the complex research took a year and a half to complete and incorporated more than an estimated one billion supply chains and their impacts on the atmosphere.

“Our analysis is a world-first look at the true cost of tourism – including consumables such as food from eating out and souvenirs – it’s a complete life-cycle assessment of global tourism, ensuring we don’t miss any impacts,” Dr Malik said.

“This research fills a crucial gap identified by the World Tourism Organization and World Meteorological Organization to quantify, in a comprehensive manner, the world’s tourism footprint.”

Co-author Dr Ya-Yen Sun, from the University of Queensland’s Business School and the National Cheng Kung University, Taiwan, said a re-think about tourism as ‘low-impact’ was crucial.

“Given that tourism is set to grow faster than many other economic sectors, the international community may consider its inclusion in the future in climate commitments, such as the Paris Accord, by tying international flights to specific nations,” she said.

“Carbon taxes or carbon trading schemes – in particular for aviation – may be required to curtail unchecked future growth in tourism-related emissions.”

Lead researcher from the University of Sydney, Professor Manfred Lenzen, said the study found air travel was the key contributor to tourism’s footprint and that the carbon-intensive industry would comprise an increasingly significant proportion of global emissions as growing affluence and technological developments rendered luxury travel more affordable.

“We found the per-capita carbon footprint increases strongly with increased affluence and does not appear to satiate as incomes grow,” Professor Lenzen said.


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