30 Day Chart Challenge
2026 Edition
30 Days of Chart Challenge is a community-run challenge on social media. [GitHub Page]. This is the second time I am taking part in the Challenge and as I'm learning D3 and React, I used exclusively D3+React.
Here are my contributions for this year.
Please note that none of the visualisations is designed to provide deep analytics.
Comparisons
Day 1 — Part-to-Whole
The Anatomy of Global Displacement
Displaced Populations and People in Need of International Protection by Category
Day 2 — Pictogram
A Perilous Journey
Arrivals and Dead & Missing Migrants and Refugees in the Mediterranean 2016-2025
Day 3 — Mosaic
Uneven Distribution of People Across Turkey
Population Density by Provinces 2025
Day 4 — Slope
Day 5 — Experimental
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Day 6 — FlowingData
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Distributions
Day 7 — Multiscale
The Global Matrix of Power Generation
How does the world generate its electricity?
Electricity Generation by Source
Global electricity generation by source, 1965–2024 (TWh)
Share of Global Electricity Generation in 2024
Electricity Generation from Fossil Fuels, Nuclear and Reneweables in 2024
Global Total and Top 9 Energy Generators
Rise of Renewables in Electricity Generation
Share of Electricity Generation by Source
Day 8 — Circular
One Day has a Different Meaning in the Solar System
One Day in Earth Hours in Different Planets
Day 9 — Wealth
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Day 10 — Pop Culture
The Fellowship: Page vs Screen
A comparative study of character frequency in Tolkien’s original text and Peter Jackson’s film adaptations
Day 11 — Physical
The Electromagnetic Spectrum
There are seven distinct electromagnetic waves that make up the electromagnetic spectrum
Day 12 — Reporters without Borders
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Relationships
Day 13 — Ecosystems
Loading night sky maps...
Day 14 — Trade
Global Trade Partners of Turkey
Foreign trade according to general trade system by top twenty countries
Day 15 — Correlation
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Day 16 — Causation
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Relationships
Day 17 — Remake
Loading Gapminder index charts...
Day 18 — South China Morning Post
The Global High-speed Race
Length of high-speed rail network in commercial operation as of 2024
Timeseries
Day 19 — Evolution
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Day 20 — Global Change
Loading historical fertility data...
Day 21 — Historical
Loading historical CO₂ emission registry...
Day 22 — New Tool
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Day 23 — Seasons
Loading historical cherry blossom metrics...
Day 24 — UNICEF
Loading historical UNICEF mortality arrays...
Uncertainties
Day 25 — Space
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Day 26 — Trend
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Day 27 — Animation
Wrangling OCHA response data metrics...
Day 28 — Modeling
Loading climate vulnerability regression indices...
Day 29 — Monochrome
Loading Suva meteorological records...
Day 30 — Global Health Data Exchange
Why do Fijian People Die?
The estimated share of total annual deaths from each cause
About Me
Data Analyst & Researcher based in Fiji. I specialise in turning complex data into actionable insights.
