As of 2022, Earth has 8 billion humans. By 2050, the population is projected to grow to 10 billion.
In the last 100 years, the global population more than quadrupled. But none of this growth has been evenly spread out, including within countries.
This series of 3D maps from Terence Teo, an associate professor at Seton Hall University, renders the population density of six countries using open-source data from Kontur Population. He used popular programming language R and a path-tracing package, Rayshader, to create the maps.
France and Germany: Population Density Spikes and Troughs
Let’s take a look at how the population spreads out in different countries around the world. Click the images to explore higher-resolution versions.
France is the world’s 7th largest economy and second-most-populous country in the EU with 65 million people. But a staggering one-fifth of the French population lives in Paris and its surrounding metro—the most populous urban area in Europe.
Many residents in the Paris metropolitan area are employed in the service sector, which makes up one-third of France’s $2.78 trillion gross domestic product.
Unlike France, Germany has many dense cities and regions, with Berlin, Munich, Stuttgart, and Cologne all having over a million residents. Berlin is the most populated at 3.5 million residents in the city proper, and 6 million in the wider urban area.
That said, the relatively recent reunification of West and East Germany in 1991 meant that post-WWII growth was mostly concentrated in West Germany (and West Berlin).
Italy and Chile: Coast to Coast
In Italy, another phenomenon affects population density and urban development—a sprawling coastline.
Despite having a large population of 59 million and large metropolitan areas throughout, Italy’s population spikes are closer to the water.
The port cities of Genoa, Napoli, and Palermo all have large spikes relative to the rest of the country, as does the capital, Rome. Despite its city center located 15 miles inland from the sea, it extends to the shore through the district of Ostia, where the ancient port of Rome existed.
Meanwhile in Chile, stuck between the Andes to the east and the Pacific Ocean to the west, population spikes corroborate with its many port towns and cities.
However, the country is more concentrated than Italy, with 40% of its residents congregating around the capital of Santiago.
Turkey and Canada: Marred by Mountains and Climes
Though Chile has difficulties with terrain, it is relatively consistent. Other countries have to attempt to settle many different climes—regions defined by their climates.
Mountains to the south and east, a large, semi-arid plateau, and even a small desert leave few centers of urban growth in Türkiye.
Predictably, further west, as the elevation comes down to the Aegean and Mediterranean Seas, population spikes begin to heighten. The largest of course is the economic and cultural hub of Istanbul, though the capital Ankara is also prominent with more than 5 million residents.
In Canada, the Rocky Mountains to the west and freezing cold temperatures in the center and north account for the large country’s relative emptiness.
Though population spikes in Western Canada are growing rapidly, highly populous urban centers are noticeably concentrated along the St. Lawrence River, with the Greater Toronto Area accounting for more than one-sixth of the country’s 39 million people.
According to the World Bank, more than half of the world’s population currently lives in cities, and that trend is only growing.
By 2050, 7 out of 10 people are projected to live in cities. This congregation makes cities a beehive of productivity and innovation—with more than 80% of the world’s GDP being generated at these population centers.
It’s in this context that mapping and studying urban development becomes all the more important, particularly as policymakers try their hand at sustainable urban planning.
As Teo puts it:
“By showing where people are (and are not), they show us where political and economic power is concentrated, and perhaps where and who our governments represent.”
This article was published as a part of Visual Capitalist's Creator Program, which features data-driven visuals from some of our favorite Creators around the world.
Ranked: Share of Global Arms Exports in 2022
The U.S. is the biggest weapons exporter in the world, but which other countries take up a significant share of global arms exports in 2022? And how has that share changed over time?
Ranked: Share of Global Arms Exports 2018–2022
In 2022, global military budgets hit $2.2 trillion, an eighth consecutive year of increase.
Part of those budgets were used for the procurement of arms, but which countries are major weapons suppliers, and how do they influence the global arms trade?
We chart out the top 10 countries with the biggest share of global arms exports using data from the Stockholm International Peace Research Institute (SIPRI).
Which Country Exports the Most Weapons?
The U.S. is the biggest weapons exporter, accounting for 40% of the total volume of international arms transfers between 2018–2022. Nearly one-fifth of these exports headed to Saudi Arabia, and other significant amounts went to Japan (8.6%) and Australia (8.4%).
Below we rank the biggest weapons exporters by share of total volume traded in 2018–2022, as well as their growth or decline from trends recorded in 2013–2017.
|Rank||Country||% share of global arms exports|
|% change between
2013-17 & 2018-22
|9||🇰🇷 South Korea||2%||+74%|
|N/A||🌐 Rest of World||9%||N/A|
Russia (16%) and France (11%) rank close together, followed by China (5%) and Germany (4%) to round out the top five major arms exporters.
However France’s export volumes grown considerably (+44%) from the previous five-year period, thanks to big sales to India, which included 62 combat aircraft and four submarines, one-third of all French weapons trade. This has resulted in France leapfrogging the U.S. as India’s second-largest weapons supplier after Russia.
On the other hand, Russia’s exports by volume has decreased (-31%) even before sanctions kicked in after the invasion of Ukraine. Its biggest trade partners, India and China, have prioritized developing their own weapons industries.
South Korea’s Surging Weapons Exports
Another country whose arms sales are skyrocketing is South Korea, which ranks 9th in the overall share of global arms exports, but has seen a 74% increase in its export volumes. Key recipients include the Philippines, India, and Thailand.
South Korean president Yoon Suk Yeol has pledged to grow his country into the world’s fourth largest arms exporter by 2027.
Interestingly, South Korea is one of three countries which is both a top-10 arms exporter and importer (along with China and the U.S.) as it has many takers for domestically produced military equipment, while simultaneously being reliant on American-produced long-range missiles and advanced combat aircraft.
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