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Overtourism in Palau

Year
2026
Context
Challenge
Role
Developer, Designer & Data Analyst
Tools
d3.js, Svelte, Python
fig.1Scrollthrough of the data journalism piece showing the correlation of the lack of renewable energies and overtourism in Palau.

01 — Premise

Overtourism in Palau is a scrolling data story created for the Pacific Dataviz Challenge 2026, whose theme this year was climate change. Palau is a Pacific island nation of fewer than 20,000 people that depends on tourism, with visitors at times outnumbering residents nine to one. Nearly all of them come for the reefs and Rock Islands. The project shows the contradiction behind this: the country sells an unspoiled natural image, but its hotels, desalination and dive boats run on a grid that is over 99% fossil fuel. Using open data from the Pacific Data Hub, the story follows Palau from tourism dependence to its ambitious goal of 100% renewable energy and asks whether it can keep selling its beauty without using it up.

02 — Analysis

The project started with an open-ended exploration of several climate change datasets from the SPC Pacific Data Hub, the official data source of the challenge. Comparing countries across indicators, one result stood out: Palau’s greenhouse gas emissions per capita are several times higher than those of any other Pacific country or territory. That outlier became the starting point of the story. Further indicators, such as tourist arrivals and the renewable energy share, helped explain it. To fill gaps in the official data, I added visitor statistics from the Palau Bureau of Budget & Planning and energy figures and targets from IRENA’s Palau Renewable Energy Roadmap. In total, seven data sources were combined into one coherent narrative: from tourism dependence, through a fossil-fuel energy system, to Palau’s path toward renewables.

World map with flow lines from source markets to Palau; China is the largest with 88,393 arrivals in 2015, 160,029 in total.
fig.2Visitor arrivals to Palau by source market in 2015, with China far ahead of Japan, Taiwan and South Korea.
Pictogram chart comparing 17,000 residents with 160,029 visitors, shown as black resident and pink snorkeling visitor icons.
fig.3Residents vs. visitors: 17,000 people living in Palau compared with 160,029 arrivals in a single year.
Interactive slider set to 14% with a ‘Check my guess’ button and feedback that the guess is too high.
fig.4Guess the number: readers estimate Palau’s renewable energy share before the real value is revealed.
Concentric rings shrinking from 3,049 TJ of non-renewable energy in 2000 to 0 in 2045, with targets for 2030 and 2040 shown dashed.
fig.5Non-renewable energy use from 2000 to the 2045 target of a fully renewable grid; dashed rings mark targets and projections.

03 — Result

The piece was published by the Pacific Community (SPC) and the Pacific Data Hub as part of the Pacific Data Viz Challenge 2026.

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