Data Vis Dispatch, July 1: Tanker traffic, N.Y.C. elections, and the race for renewables

Welcome back to the 199th edition of Data Vis Dispatch! Every week, we’ll be publishing a collection of the best small and large data visualizations we find, especially from news organizations — to celebrate data journalism, data visualization, simple charts, elaborate maps, and their creators.

Recurring topics this week include the global role of tanker traffic, mayoral elections in New York City, and international comparisons in the race for renewable energy.

A new focus emerged in this week's reporting about the Middle East — tanker traffic around the Strait of Hormuz:

Bloomberg: <a href="https://www.bloomberg.com/news/features/2025-06-29/iran-israel-conflict-worsens-global-shipping-navigation-problems?accessToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzb3VyY2UiOiJTdWJzY3JpYmVyR2lmdGVkQXJ0aWNsZSIsImlhdCI6MTc1MTI3NDkxNSwiZXhwIjoxNzUxODc5NzE1LCJhcnRpY2xlSWQiOiJTWU1ZQ1REV1gyUFMwMCIsImJjb25uZWN0SWQiOiJEMjk1RDc5RkRFQzc0QjQ4OEJDMUY1Mjc1Mjg1RUQ2NSJ9.FxbCNHbv5vGz33BPEjl82OqH5UZBk8Axr9MLnfQizu8"><strong>Electronic Warfare Crashes Global Shipping’s Navigation Systems</strong></a>, June 29 — Bloomberg: **Electronic Warfare Crashes Global Shipping’s Navigation Systems**, June 29

The New York Times: Mideast Conflict Imperils a Tiny Waterway Vital to the World Economy, June 25

Der Spiegel: <a href="https://www.spiegel.de/wissenschaft/iran-israel-konflikt-was-die-strasse-von-hormus-und-andere-nadeloehre-fuer-die-energiemaerkte-bedeuten-a-8c14508d-6ef5-4f88-a8e8-73184cf5246d"><strong>Wo Tanker ins Schussfeld geraten oder stecken bleiben könnten</strong></a> [<em>Where tankers could come under fire or get stuck</em>], June 26 — Der Spiegel: **Wo Tanker ins Schussfeld geraten oder stecken bleiben könnten** [*Where tankers could come under fire or get stuck*], June 26

Other developments related to the bombing and subsequent ceasefire in Iran, were examined by The Economist:

The Economist: <a href="https://www.economist.com/graphic-detail/2025/06/26/iran-has-come-back-online-for-now"><strong>Iran has come back online—for now</strong></a>, June 26 — The Economist: **Iran has come back online—for now**, June 26

The Economist: <a href="https://www.economist.com/united-states/2025/06/26/the-fallout-from-trumps-iran-strikes-is-political-too"><strong>The fallout from Trump’s Iran strikes is political, too</strong></a>, June 26 — The Economist: **The fallout from Trump’s Iran strikes is political, too**, June 26

The Economist: <a href="https://www.economist.com/graphic-detail/2025/06/24/how-often-do-ceasefires-in-the-middle-east-work"><strong>How often do ceasefires in the Middle East work?</strong></a>, June 24 — The Economist: **How often do ceasefires in the Middle East work?**, June 24

The surprising victory of Zohran Mamdani in New York City's mayoral primary was unsurprisingly well-covered by The New York Times:

The New York Times: <a href="https://www.nytimes.com/interactive/2025/06/25/opinion/mamdani-cuomo-new-york-mayor-election.html?unlocked_article_code=1.R08.CdrQ.oA4grPAUFIUz&smid=nytcore-ios-share&referringSource=articleShare&utm_source=substack&utm_medium=email"><strong>The Anatomy of Mamdani’s Political Earthquake</strong></a>, June 25 — The New York Times: **The Anatomy of Mamdani’s Political Earthquake**, June 25

The New York Times: <a href="https://www.nytimes.com/2025/06/29/nyregion/zohran-mamdani-voters-strategy.html?unlocked_article_code=1.Sk8.R2Au.twHLoKC_oTFa"><strong>How Zohran Mamdani Brought New Voters to the Polls</strong></a>, June 29 — The New York Times: **How Zohran Mamdani Brought New Voters to the Polls**, June 29

The New York Times: <a href="https://www.nytimes.com/interactive/2025/06/24/us/elections/nyc-mayor-primary-results-precinct-map.html"><strong>The Most Detailed Map of the N.Y.C. Mayoral Primary</strong></a>, June 24 — The New York Times: **The Most Detailed Map of the N.Y.C. Mayoral Primary**, June 24

We also found two charts about health issues, a topic we wouldn't mind including more often:

Reuters: <a href="https://www.reuters.com/graphics/USA-HEALTH/AMENORRHEA/dwpklrkaxvm/"><strong>When the cycle stops</strong></a>, June 27 — Reuters: **When the cycle stops**, June 27

McKinsey & Company: <a href="https://www.mckinsey.com/featured-insights/sustainable-inclusive-growth/charts/obesitys-growing-but-unequal-burden"><strong>Obesity’s growing but unequal burden</strong></a>, June 26 — McKinsey & Company: **Obesity’s growing but unequal burden**, June 26

This colorful selection of charts marks the end of this weeks edition, spanning tournaments, democracy, nationalities, interventionism, and sexual orientation:

Micah McCurdy: "FIFA are also pretty reliable in the 'what if [we] made the tournament structure weird in a way that will make it challenging to viz?' […]," June 30 (Bluesky) Great thread

The New York Times: <a href="https://www.nytimes.com/interactive/2025/06/30/climate/china-clean-energy-power.html"><strong>There’s a Race to Power the Future. China Is Pulling Away</strong></a>, June 30 — The New York Times: **There’s a Race to Power the Future. China Is Pulling Away**, June 30

Nexo: <a href="https://www.nexojornal.com.br/grafico/2025/06/27/brasil-populacao-estrangeira-censo-2022-venezuela"><strong>Venezuelanos são o maior grupo de estrangeiros no Brasil</strong></a> [<em>Venezuelans are the largest group of foreigners in Brazil</em>], June 27 — Nexo: **Venezuelanos são o maior grupo de estrangeiros no Brasil** [*Venezuelans are the largest group of foreigners in Brazil*], June 27

El Orden Mundial: <a href="https://elordenmundial.com/mapas-y-graficos/intervencionismo-estados-unidos-america-latina/"><strong>El intervencionismo de Estados Unidos en América Latina</strong></a><strong> </strong>[<em>US interventionism in Latin America</em>], June 25 — El Orden Mundial: **El intervencionismo de Estados Unidos en América Latina** [*US interventionism in Latin America*], June 25

WeVis: <a href="https://wevis.info/thaidemocracyin2025/"><strong>9 ทศวรรษ อภิวัฒน์สยาม : ประชาธิปไตยไทยวันนี้ อยู่จุดไหนในโลก?</strong></a> [<em>9 Decades of the Siamese Revolution: Where is Thai Democracy Today in the World?</em>], June 24 — WeVis: **9 ทศวรรษ อภิวัฒน์สยาม : ประชาธิปไตยไทยวันนี้ อยู่จุดไหนในโลก?** [*9 Decades of the Siamese Revolution: Where is Thai Democracy Today in the World?*], June 24

Beyond Words Studio: "[…] In the UK, a growing number of people of all ages are identifying as lesbian, gay or bisexual […]," June 27 (<a href="https://www.linkedin.com/posts/beyond-words-studio_with-pride-month-coming-to-a-close-we-wanted-activity-7344316590512848896-51MP?utm_source=share&utm_medium=member_desktop&rcm=ACoAADg6TZkBloZMKNiBJ3SZtJ0Jvy2mEqnIVmA"><strong>LinkedIn</strong></a>) — Beyond Words Studio: "[…] In the UK, a growing number of people of all ages are identifying as lesbian, gay or bisexual […]," June 27 (**LinkedIn**)

What else we found interesting

Chartography: <a href="https://www.chartography.net/p/stripped-of-verbal-shamvivid-unescapable"><strong>"Stripped of Verbal Sham—Vivid, Unescapable,"</strong></a><strong> </strong>June 24 — Chartography: **"Stripped of Verbal Sham—Vivid, Unescapable,"** June 24

Financial Times: <a href="https://ig.ft.com/russia-eastern-border/"><strong>Is Europe prepared for war?</strong></a>, July 1 <span class="badge">Extensive report</span> — Financial Times: **Is Europe prepared for war?**, July 1 Extensive report

Financial Times: <a href="https://www.ft.com/content/3f62b404-9550-42ca-b3ef-cb7c4626b8f4"><strong>How we made it: Dual heat domes hit Europe and US</strong></a>, June 30 — Financial Times: **How we made it: Dual heat domes hit Europe and US**, June 30

Applications are open for…

A data journalist at Correctiv
A design principal at Clever Franke
A graphics/multimedia editor at The New York Times

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Data Vis Dispatch, July 1: Tanker traffic, N.Y.C. elections, and the race for renewables

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