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Beautiful Maps of the World’s Watersheds

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Nothing is more fundamental to life than water – and this is particularly evident in a country like Egypt, which has been aptly described by Greek historian Herodotus as the “Gift of the Nile”.

In Egypt, an astonishing 95% of the population lives alongside the mighty Nile, which is the world’s longest river at 4,258 mi (6,853 km) and also the only major source of freshwater in an otherwise arid desert landscape.

The World’s Watersheds

The Nile isn’t alone in creating the right conditions for life. Rivers of all sizes help form the world’s watersheds, and together they comprise a “circulatory system” that pumps life into every corner of the globe.

Today’s stunning maps, via geographer Szűcs Róbert, divide our planet’s watersheds into colorful catchment areas, and provide an informative look at how water flows across continents.

European Watersheds

When Rivers Take the Long Way ‘Round

Grade school physics teaches us that liquid water will take the most available path of least resistance. Sometimes though, that most available path can take water from mountains clear across a continent before reaching an ocean.

river basin map south america

Nowhere is this more evident than in Peru, home of the glacier-packed Cordillera Blanca. As rain and meltwater begins flowing from the peaks of the Andes Mountains, there are two diverging paths to the ocean.

The journey to the Pacific Ocean is a quick one, and there are small rivers at regular intervals along the coast of Peru.

Because trade winds blow east-to-west in that region, most of the water flows down the eastern side of the Andes, the beginning of a journey across the continent (as demonstrated by the light blue section of Róbert’s South America map.)

Without the Andes acting as a backstop for rain, the Amazon rainforest would not exist in its current scale and form.

When Three Become One

united states watershed map

In the United States, the dominant drainage basin is the Jefferson-Mississippi-Missouri River system (shown in pink on the map above.) This massive basin collects water from over 40% of the contiguous U.S., and comes into contact with two Canadian provinces and 31 states before terminating at the Gulf of Mexico.

The Top Ranked Rivers

The Amazon discharges far more water than any other river on earth, dumping more water per second into the ocean than the next four largest rivers combined. That makes the Amazon a clear winner in this category.

In terms of drainage area though, the Amazon is not as dominant:

largest rivers drainage

In fact, there are multiple rivers that cover massive drainage areas. This includes the Congo in Africa, as well as the mighty Mississippi, which is neck-and-neck with the Nile.

For more, view the full collection of maps here.

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Markets

Who Owns the Most Vehicles per Capita, by Country?

Here are the highest vehicles per capita by country as a growing global middle class is fueling car ownership rates around the world.

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This bar graph shows the number of vehicles per 1,000 people around the world.

Who Owns the Most Vehicles per Capita, by Country?

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

In 2020, there were 289 million vehicles in use in America, or about 18% of the global total.

With one of the largest car ownership rates worldwide, the number of U.S. cars on the road have more than doubled since the 1960s. But how does ownership compare to other countries, and who is seeing the fastest growth rates amid a rising global middle class?

This graphic shows vehicles per capita by country, based on data from the International Organization of Motor Vehicle Manufacturers (OICA).

Highest Car Ownership Rates Worldwide

Below, we rank countries based on the number of registered vehicles in use per 1,000 people, including both passenger cars and commercial vehicles as of 2020:

CountryNumber of Vehicles in Use
per 1000 Inhabitants
Average Annual Growth Rate
2015-2020
🇳🇿 New Zealand8693%
🇺🇸 U.S.8602%
🇵🇱 Poland7614%
🇮🇹 Italy7561%
🇦🇺 Australia7372%
🇨🇦 Canada7073%
🇫🇷 France7041%
🇨🇿 Czechia6583%
🇵🇹 Portugal6402%
🇳🇴 Norway6351%
🇦🇹 Austria6322%
🇬🇧 UK6322%
🇩🇪 Germany6272%
🇪🇸 Spain6272%
🇬🇷 Greece6171%
🇯🇵 Japan6120%
🇨🇭 Switzerland6041%
🇧🇪 Belgium5901%
🇳🇱 Netherlands5882%
🇫🇮 Finland5771%
🇸🇪 Sweden5441%
🇩🇰 Denmark5402%
🇮🇪 Ireland5403%
🇲🇾 Malaysia5356%
🇸🇰 Slovakia5133%
🇱🇾 Libya4904%
🇧🇬 Bulgaria485-1%
🇭🇷 Croatia4743%
🇸🇾 Syria4727%
🇭🇺 Hungary4634%
🇰🇷 South Korea4582%
🇷🇴 Romania4387%
🇮🇱 Israel4044%
🇷🇺 Russia3892%
🇧🇾 Belarus3871%
🇲🇽 Mexico3584%
🇹🇼 Taiwan3441%
🇦🇪 UAE3438%
🇷🇸 Serbia3304%
🇦🇷 Argentina3110%
🇹🇭 Thailand2775%
🇨🇱 Chile2461%
🇰🇿 Kazakhstan226-1%
🇨🇳 China22314%
🇹🇷 Türkiye2204%
🇧🇷 Brazil2141%
🇺🇦 Ukraine192-1%
🇮🇷 Iran1832%
🇿🇦 South Africa1761%
🇪🇨 Ecuador1523%
🇻🇪 Venezuela149-1%
🇩🇿 Algeria1443%
🇲🇦 Morocco1124%
🇨🇴 Colombia1111%
🇮🇶 Iraq1114%
🇵🇪 Peru884%
🇮🇩 Indonesia785%
🇪🇬 Egypt644%
🇳🇬 Nigeria565%
🇻🇳 Vietnam5017%
🇵🇭 Philippines383%
🇮🇳 India3310%
🇵🇰 Pakistan207%

Clinching top spot is New Zealand, a country known for its love of cars.

With nearly nine cars on the road to every 10 people, this figure is notably high considering that children make up about 20% of the population. The majority of cars are imported second hand from Japan thanks to a wave of deregulation in the 1980s along with the country being a major producer of right-hand drive cars.

The U.S. falls close behind, with a clear preference for trucks and SUVs. In fact, the Ford F-1 Series has been the best-selling vehicle in America for 42 consecutive years.

In Europe, Poland has the highest number of vehicles per person, but one of the lowest share of electric vehicles (EVs). While EVs make up nearly 16% of all cars in top-ranking country Norway, they comprise 0.1% in Poland. On average, EVs account for 0.8% of passenger cars in the European Union.

Driven by an expanding middle class, Vietnam has seen the fastest growth in ownership. Between 2015 and 2020, the motorization rate grew by an astonishing 17% each year. Additionally, China witnessed 14% growth while India’s vehicles per 1,000 people increased 10% annually over the period.

The Top EV Markets, by Country

As EV sales gain momentum, here are the biggest markets worldwide, based on the number of all-EV cars in use as of 2022:

CountryEstimated Number of EVs in Use
2022
🇨🇳 China11,000,000
🇺🇸 U.S.2,100,000
🇩🇪 Germany1,000,000
🇫🇷 France620,000
🇳🇴 Norway590,000
🇬🇧 UK550,000
🇳🇱 Netherlands340,000
🇰🇷 South Korea300,000
🇨🇦 Canada250,000
🇯🇵 Japan210,000

Source: IEA Global EV Outlook 2023

China is home to over half of the world’s EVs.

Its foothold on the global EV market can be explained by its close proximity to the raw materials used in EV batteries. In fact, China produces roughly 70% of the world’s rare earth metals and has more battery production capacity than all other countries combined.

Adding to this, China developed key government policies that specifically tackled operational hurdles, such as battery constraints, leading to innovation in core technologies. In 2023, EVs made up 31% of all car sales in China, boosted by government incentives and strong consumer demand.

Norway is another leader in the EV market, whose government began introducing EV policies as early as 1990. By 2025, the country aims to phase out internal combustion engine vehicle sales completely. About 80% of all vehicles sales in Norway were EVs in 2022, the highest in the world.

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