Data Vis Dispatch, November 11: Mayoral election in New York City, deforestation, and chess

Last week, people around the world had their eyes on the mayoral election in New York City and its winner, Democrat Zohran Mamdani. Take a look at electoral maps, voter turnout, and an analysis of the groups that voted for him:

U.S. coverage was not limited to the election. Other topics included best places to raise children, the reactivation of a military base in Puerto Rico, and the impact of the ongoing government shutdown on workers and families.

Challenges in the transportation sector extend beyond the U.S. There, flight cancellations are adding up. In Spain, trains are facing declines in production and investment.

The food industry isn't having an easy time either. Plants, such as waterhemp, are becoming resistant to widespread pesticides, and food inspections are at their lowest level in over a decade.

For a more pleasant interlude, let's take a look at the continuing #30DayMapChallenge! Our favorites of the week visualize the following prompts: Earth, dimensions, urban, analog, and air.

Even outside of the #30DayMapChallenge, we found some intriguing analog data projects: the Women's National Basketball Association on paper, children's TV production in Australia in Lego bricks, and dynamic augmented line charts.

We turn to China, where trade tensions and economic obstacles converge. Steep U.S. tariffs weigh on exports, while too much supply meets too little demand internally.

Ahead of the 30th United Nations Climate Change Conference, known as COP30, and the 10th anniversary of the Paris Climate Agreement, attention once again turns to climate. The spotlight is on future greenhouse gas emissions, past projections and current progress. Other indicators, such as clean energy development and deforestation, are being evaluated, particularly in Brazil, where the conference is taking place.

On the financial front, the multibillion-dollar takeover battle for obesity drug developer Metsera between Pfizer and Novo Nordisk boosts the stock price, while AI-related companies dominate the S&P 500.

What do chess opening moves, democracies, corruption, and Bolivian census data have in common? All we know is that they can be the basis for intriguing visualizations.