22.04.2021

Holiday trips spell trouble for the future of life on Earth


Tourists on the beach watch an aeroplane land
Tourism to islands such as Saint Martin in the Caribbean leaves a large carbon footprint. Credit: Mike Theiss/Getty

Climate change

07 May 2018

Carbon emissions from tourism are rising at an alarming rate.

The human thirst for travel accounts for some 8% of the world’s greenhouse-gas emissions.

Arunima Malik at the University of Sydney in Australia and her colleagues conducted the most comprehensive modelling study on the topic so far, and found that in 2013, tourism’s global carbon footprint was 4.5 billion tonnes. That’s 15% more than the sector’s 2009 total.

The team found that the United States has the biggest total footprint, and that the carbon footprint made abroad by some nationalities – such as the Danes – is much bigger than that left by tourism in their homelands. Travel to islands such as the Maldives generates some of the biggest per-capita emissions by destination.

Projected increases in global incomes could raise tourism-related carbon emissions to 6.5 billion tonnes in 2025, the authors say.

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