Understanding what that means for global precipitation starts with the ocean current system that makes the tropical Pacific so influential.

The current system behind the cycle

The Britannica map below shows how global ocean circulation is organised. These current systems play an important role in determining the climates of coastal regions, transferring heat from Earth’s equatorial areas toward the poles much the way atmospheric winds do. In the Southern Hemisphere, gyre circulation runs counterclockwise, generating eastern boundary currents along the western coasts of continents. Both the Peru (Humboldt) Current off South America and the Benguela Current off western Africa draw cold water northward from the Antarctic Circumpolar Current.

Peru lost over USD 1.4 billion in fishmeal and fish oil exports when its 2023 anchovy season was cancelled. Around 18,000 fishermen went nine months without income. The trigger was a shift in the central Pacific, not anything happening off the Peruvian coast. The Peruvian anchovy fishery is the largest in the world in terms of catches, and its productivity sits entirely on cold water rising from depth to the surface. When the easterly trade winds along the equator weaken, the warm water piled up in the western Pacific sloshes eastward and sea surface temperatures in the central and eastern Pacific spike. Cold upwelling slows. The anchoveta lose their food source.

NOAA tracks this through the Walker Circulation, a massive east-to-west air flow driven by pressure differences between the warm western and cool eastern Pacific. Its breakdown is what triggers El Niño. La Niña is the opposing state: cooler-than-normal sea surface temperatures in the same region, paired with stronger-than-normal easterly winds. The two phases alternate every two to seven years.

How rainfall shifts by region

El Niño affects rainfall far beyond its Pacific origins. One of its less obvious effects is on Atlantic hurricanes: high-altitude wind shear increases over the Atlantic, suppressing storm development. Colorado State University cut its 2026 Atlantic hurricane forecast to just 11 named storms, predicting activity around 60% of the long-term average. Caribbean and Central American wet seasons, which depend heavily on tropical systems, see the knock-on effect of that suppression.

The drought signal reaches further still. Australia has seen its worst droughts on record in El Niño years, 1982, 1994, 2002, 2006, and 2015, with total winter crop production falling 40% and farm GDP declining by an average of 13%. Indonesia loses monsoon rainfall. Parts of southern Asia see suppressed precipitation across the same season.

Above-normal rainfall during El Niño tends to fall across the Horn of Africa, parts of southern South America, central Asia, and the southern United States. East Africa complicates any simple summary. El Niño often intensifies the October to December short rains season there, yet suppresses rainfall from June through September across Sudan, South Sudan, parts of Ethiopia, and western Kenya.

La Niña brings increased chances of unusually wet conditions to Southeast Asia, Australia, northern South America, and Melanesia, and southern Africa often receives above-normal rainfall during this phase. Drought risk under La Niña migrates toward East Africa, parts of Central Africa, and subtropical North America.

The WMO map above plots these anomalies season by season: orange for drier than normal, blue for wetter. Each season gets its own panel because a region showing orange in one quarter can be neutral or blue a few months later within the same El Niño–Southern Oscillation (ENSO) event.

What climate change adds

ENSO predates the industrial era by millennia. According to WMO, there is no evidence that climate change increases its frequency or intensity. What it changes is what each event produces once it arrives. Climate change cranks up the volume because each El Niño now unfolds in a much hotter and more energetic world due to fossil fuel pollution.

Imperial College London researchers found that El Niño-driven sea surface temperature extremes have already intensified by around 10% compared to pre-1960 levels, with earlier modelling from the same group suggesting extreme events could double in frequency over the next century. 2024 became the hottest year on record through the combination of the 2023-2024 El Niño and human-induced climate change from greenhouse gas emissions. WMO estimates an 86% probability that at least one year between 2026 and 2030 will surpass it. With a potentially stronger event now confirmed for 2026-27, that timeline may be short.

The post How El Niño Flips the World’s Rainfall Map appeared first on Vivid Maps.

Reddit user u/Timely-Macaron268 overlaid the outlines from 16 different sources into one heatmap. Instead of choosing a single answer, the map simply counts how often each area was marked as “Central Europe.”

Darker shades on the map below mean that region shows up in nearly all definitions, while paler shades mean only a few. This approach doesn’t preach one authority – it lets the data speak in color.

The darkest spot (100%) is Moravia in eastern Czechia – literally every map included it. Slovakia comes in at 94% (one map accidentally forgot to color it) and the rest of Czechia isn’t far behind. Austria, Hungary and Poland also light up almost every time. In fact, experts often identify the Visegrád Four (Czechia, Slovakia, Hungary, Poland) as the traditional core, and our heatmap agrees.

Why all this disagreement? Some definitions of “Central Europe” follow the borders of old empires (think of Habsburgs and Austro-Hungary). Others follow culture, language or religion lines. Still others use modern administrative groupings. For example, the EU’s Interreg CENTRAL EUROPE programme explicitly defines Central Europe as nine specific countries – Austria, Croatia, Czechia, Germany, Hungary, Italy, Poland, Slovakia and Slovenia.

In short, there’s no single rulebook. One atlas might highlight heritage, another modern alliances, yet another language families. Each choice shifts the outline.

The post Where Does Central Europe Begin and End? A Heatmap of 16 Definitions appeared first on Vivid Maps.

The map above marks every European region that crosses the one million resident threshold. Ile-de-France leads at 12.4 million residents, followed by Lombardia in northern Italy at 10 million and Andalucia in southern Spain at 8.6 million.

Geographers have called this arc the Blue Banana since French geographer Roger Brunet named it in 1989 – it takes in Greater London, the Benelux, Westphalia, the Rhineland, Bavaria, Austria, Switzerland and Lombardia, with roughly 100 million people concentrated in that band (rxo.com).

Across the EU, 95 out of 244 NUTS level 2 regions had populations between 1 and 2 million as of January 2024 (Eurostat) – most of them inside or adjacent to that same corridor.

The density range across the continent differs considerably, from 21,000 inhabitants per square kilometre in central Paris to 2 in Finland’s Lapland.

The post Europe’s Most Populated Regions appeared first on Vivid Maps.

Han Chinese: 1.4 billion people

More than 1.4 billion Han Chinese live on Earth, making up roughly 91% of China’s population and about 17% of the entire world. The group traces its roots to the Yellow River basin in northern China, spreading gradually across what became inner China over centuries of agricultural expansion. Their name comes from the Han Dynasty (202 BCE to 220 CE), remembered as one of Chinese civilization’s high points.

Outside China, the largest communities are in Southeast Asia, where Han Chinese make up about 75% of Singapore’s population and are a significant presence in Thailand, Malaysia, and Indonesia.

Arabs: approximately 420 million people

Egypt, Algeria, Saudi Arabia, Sudan, Iraq — these countries alone account for a large portion of the roughly 540 to 560 million Arabs living worldwide, of whom around 490 to 500 million are in Arab League states and about 50 million are scattered across diaspora communities. The spread happened differently than with the Han. Arabic-speaking populations did not stay concentrated in one region. After the 7th century, Islam carried the Arabic language and culture across enormous distances in a historically short period, from the Atlantic coast of Africa east through the Levant and Mesopotamia and into Central Asia. Egypt alone has over 116 million people today. The broader Arab region reached 480 million in 2024 and is on track to exceed 540 million by 2030, growing at close to twice the global average.

Bengalis: approximately 300 million people

Around 310 million Bengalis live across the world, most of them split between Bangladesh at roughly 175 million and India’s West Bengal state at around 90 million. The delta formed by the Ganges, Brahmaputra, and Meghna rivers is some of the most productive agricultural land anywhere, which is a large part of why this corner of South Asia ended up so densely populated in the first place. That population got divided in 1947 when Britain partitioned India along religious lines, separating Bengalis between a Muslim-majority east and a Hindu-majority west. The east became East Pakistan, then Bangladesh after the 1971 war of independence. Today close to 8.7 million Bangladeshis live abroad according to the UN’s International Organization for Migration, concentrated mainly in Saudi Arabia, Malaysia, the UK, and the Gulf states.

The post The World’s Three Largest Ethnic Groups and Where They Live appeared first on Vivid Maps.

A Purdue University study published in Nature Human Behaviour in 2018 put numbers to this using data from over 1.7 million people across 164 countries. The researchers called the cutoff “income satiation,” the salary level beyond which further increases show no measurable improvement in how people evaluate their own lives. Remitly used those figures, adjusting for local purchasing power and inflation in each country, to calculate the “price of happiness”: that threshold mapped across 123 countries.

Wealthier countries need higher incomes to reach satiation. According to the world map above, Northern and Western Europe dominate the expensive end. Much of sub-Saharan Africa and Latin America are at the other extreme.

$163,579 per year is Iceland’s price of happiness, the highest of any country in the study. That number matches Iceland’s second-place finish in the 2025 World Happiness Report, and the two facts reinforce each other. Iceland’s rising happiness is closely tied to its world-leading social support scores. The author Hrund Gunnsteinsdóttir told the BBC that genuine gender equality tends to bring social and economic stability with it, which in turn drives wellbeing. Iceland seems to bear that out.

Ethiopia is at the other end at $10,176 per year, against an average annual income of around $777. The income level where life satisfaction would stop rising is more than 13 times what most Ethiopians earn. A lot of the countries near the bottom of this list face a similar problem, with average wages covering less than 40% of even a relatively modest satiation threshold.

Eighteen countries reach six figures in U.S. dollars. Fourteen of them are in Europe, with the U.S., Canada, Australia, and New Zealand making up the rest.

The One Country That Actually Covers the Bill

Almost everywhere in the world, average wages fall short of the income satiation point. Often well short.

Slovenia is the one exception. The typical income there is $42,754, which clears the satiation threshold of $36,769 by 16.3%. No other country in the study achieves that. Part of what may explain it: Slovenia is one of a small group of countries, along with Latvia and Poland, that formally use wellbeing and happiness metrics as inputs to government policy decisions rather than treating them as background data. Latvia’s average wage covers 84.7% of its price of happiness; Poland’s covers 74.5%. Both rank among the 11 countries globally where that ratio is highest.

How the U.S. Numbers Break Down by City

The national figure of $134,827 is the fifth-highest in the world, but averages smooth over enormous local variation. Remitly calculated the satiation point for 50 major cities using Numbeo’s cost-of-living index.

New York tops the list at $195,969 per year. Rent there runs about 149% of the national average. The Center for New York City Affairs has also documented that the city’s wage gap between top and bottom earners keeps widening, even as it shrinks in most other U.S. cities. Honolulu and San Francisco are right behind at $192,441 and $191,266 respectively.

The cheapest city in the dataset is Cincinnati, Ohio, at $122,480, roughly $73,000 below New York. Houston ($125,224), San Antonio ($123,656), and Austin ($130,123) are close to the bottom as well, which makes sense given Texas’s lower overall cost structure compared to the coasts.

City-Level Data for the UK, Australia, Canada, and Spain

Remitly ran the city-level calculation for four other countries too.

London’s price of happiness is £116,097 GBP ($155,187 USD), 14.8% above second-placed Oxford. Every one of the five most expensive UK cities is in the South or Southeast of England, which isn’t surprising given how income and cost of living are distributed across the country. Sheffield has the lowest figure among the 23 UK cities at £83,723 GBP ($111,912 USD). The 2026 Happy City Index put London at 48th globally for happiness. For a city of its wealth and cultural weight, that’s a sobering number, and the Trust for London’s research goes some way to explaining it: four million Londoners live in households without enough for a basic standard of living, half of them children.

Australia’s seven cities are led by Sydney at $178,407 USD ($255,524 AUD). Brisbane is the lowest of the group at $153,938 USD ($220,478 AUD), which is somewhat counterintuitive. The city has been absorbing large numbers of people relocating from other Australian states, and housing prices have risen sharply as a result. SGS Economics and Planning rated Brisbane highly for overall wellbeing despite the housing pressure, though the satiation figure may not yet fully reflect what it costs to live there now.

In Canada, Victoria comes out on top at $124,047 USD ($169,951 CAD). Vancouver and Toronto are essentially tied for second at $121,881 USD ($166,982 CAD) each. The living wage in Victoria has been climbing steadily in step with costs. Kingston, Ontario, has the lowest price of happiness in the country at $102,560 USD ($140,513 CAD), which is a little surprising: Kingston has become one of Canada’s priciest rental markets, and the purchasing-power methodology used here may not yet capture how much that’s changed day-to-day costs.

Spain’s 12 cities are much closer together than those in any other country in the study. Madrid leads at $102,190 USD (€89,759), and even last-placed Granada is only 18.5% below that at $83,285 USD (€73,153). To put that in perspective, the U.S. range spans more than $73,000. Madrid, Barcelona ($100,828 USD / €88,562), and Palma de Mallorca ($100,487 USD / €88,263) happen to be among Spain’s priciest cities for rent as well. Barcelona was the only one of the three to appear in a data-driven ranking of Spain’s ten happiest cities, where good urban infrastructure and reliable sunshine gave it an edge. As for Granada, finishing last here says more about its cost of living than about quality of life. Its climate, architecture, and relatively reasonable housing make it genuinely livable in ways that don’t show up in a satiation threshold.

How Income Connects to Wellbeing

Personal happiness depends on a lot of things, but an income that provides a genuine sense of safety, freedom, and control over your own life is a baseline factor. The results from Finland’s Universal Basic Income trial support this: giving unemployed participants a modest monthly cash injection only slightly improved their chances of finding employment, but it significantly boosted multiple measures of their wellbeing and reinforced positive individual and societal feedback loops.

The Purdue study highlights several critical nuances. Education level also affects the price of happiness, though this analysis focused on location. Data show that higher education levels also increase the income required for happiness. Furthermore, the authors note the ‘hedonic treadmill’ effect, where individual happiness naturally adapts and returns to a baseline after major life changes. Lastly, the study’s peak happiness markers represent a cross-sectional comparison between distinct income groups, rather than tracking an individual’s personal emotional journey after receiving a salary increase.

In every country except Slovenia, average wages fall below the price of happiness. That points to real work still to be done in aligning the labor people do with the material rewards they get in return. Closing that gap would feed individual wellbeing and knock-on benefits for communities.

The post The Price of Happiness by Country appeared first on Vivid Maps.

Murmansk is the largest city in the world north of the Arctic Circle. 270,000 people live there. Real city with schools, shops, apartment buildings. Families have lived there for generations. Norilsk and Yakutsk are similar – permanent Arctic settlements where people build lives.

In Canada, Nunavut covers an enormous territory but has almost no one. About 39,000 people live across 1.9 million square kilometers (733,000 sq mi). Iqaluit is the capital and largest town with around 9,000 people. The rest is empty tundra.

The map below, created by Piotr Kapuściński’s, shows population density in the Arctic.

Why the gap? Russia invested in Arctic development during Soviet times. They needed resources from there – minerals, oil, gas. Built infrastructure, cities, permanent populations. Mining operations and factories required full-time workers. Communities grew to support them.

Canada approached differently. Companies extracted resources temporarily then left. Workers came for jobs and departed. Greenland similar. The Arctic never became worth permanent development. You don’t build cities for temporary work.

The Arctic costs enormous amounts to develop. Permafrost makes construction complicated. Heating and supply chains run expensive. You invest that money only for something valuable. Russia decided the resources justified it. Other nations disagreed.

Climate change is reshaping the picture. Melting permafrost destabilizes buildings in Arctic cities. Warming opens new shipping routes and makes resource extraction easier. The paradox is obvious, the Arctic becomes more valuable and more fragile at the same time. Whether governments maintain these cities or let them shrink as permafrost disappears remains undecided.

The post Population Density in the Arctic Mapped appeared first on Vivid Maps.

That same year, a restaurant in Val Thorens got fined €8,000 for the same thing. France has a consumer law that makes free tap water mandatory, and it actually gets enforced. Spain brought in a similar rule in 2022, also partly because of all the plastic bottles. Portugal too. Germany never did, and in plenty of German restaurants still water costs more than beer.

The UK has an arrangement that probably surprises most British people: free tap water is only legally required if the venue sells alcohol. Every pub has to provide it. A café that doesn’t serve alcohol doesn’t. Ireland, despite sharing an island with some of those rules, has no equivalent law at all.

New Zealand just requires it everywhere, full stop. Australia ties it to the alcohol license like the UK does. The US has no federal rule, but the cultural expectation is so automatic that most Americans find it genuinely jarring to discover there’s no law behind it. California in 2015 actually banned servers from bringing water unless a customer asks first, as a drought conservation measure.

The Netherlands has no requirement and a petition signed by over 100,000 people demanding “tap water everywhere” to prove how much that bothers people. No law has followed yet.

Most of Africa, Latin America, and Asia have no obligation either.

The post Free Tap Water Laws in Restaurants appeared first on Vivid Maps.

Mallorca logged 47.2 million international overnight stays in 2023. The whole of Switzerland logged 27.7 million. The Canary Islands and Balearics pull visitors in for a week or two. Paris and the Riviera draw shorter stays, and many visitors cross from Belgium, Germany, or Switzerland without spending a night at all.

According to the map above, created by VisualCapitalist, using Eurostat data, Italy is at 265 million nights. Türkiye at 154 million edges out France at 150 million, which tends to catch people off guard. The UK follows at 149 million.

Rank	Country	International Visitor Nights
1	Spain	329,661,068
2	Italy	264,741,414
3	Türkiye	154,799,879
4	France	150,753,829
5	United Kingdom (2024)	149,803,000
6	Greece	130,851,809
7	Austria	97,020,394
8	Croatia	85,604,505
9	Germany	83,622,666
10	Netherlands	64,311,055
11	Portugal	60,031,130
12	Switzerland (2024)	27,719,928
13	Czechia	26,740,457
14	Ireland	24,718,902
15	Belgium	23,138,513
16	Poland	20,217,607
17	Cyprus	17,338,450
18	Denmark	16,909,462
19	Sweden	16,496,139
20	Hungary	16,234,583
21	Bulgaria	16,083,286
22	Norway	14,165,842
23	Slovenia	13,344,871
24	Malta	11,755,619
25	Iceland	8,849,422
26	Albania	7,137,072
27	Finland	7,081,113
28	Serbia	6,072,905
29	Slovakia	5,407,029
30	Romania	5,326,691
31	Montenegro	4,577,800
32	Lithuania	3,841,447
33	Estonia	3,797,929
34	Luxembourg	3,177,126
35	Latvia	3,076,322
36	North Macedonia (2024)	1,530,378
37	Kosovo	902,259
38	Liechtenstein	208,229
—	European Union (total)	1,501,283,416

The Alpine ski economy does interesting things to overnight numbers. Austria logged 97 million international overnight stays, above Croatia at 85 million and Germany at 83.6 million, two countries with larger populations.

EU overnight stays grew 40% between 2009 and 2019, international visitors up 53%. 2020 cut 51% of that away in one year. 2023 was when the EU finally cleared the 2019 total, at 2.94 billion overnight stays.

The post Europe’s Most Visited Countries Mapped appeared first on Vivid Maps.

The population is around 56,000, mostly strung along the western and southern coasts. Nuuk, the capital, holds roughly 20,000 of them and is somehow the world’s northernmost capital city. Sisimiut is next at around 5,500. You get about 10°C in Nuuk in summer. Go inland and that starts to sound warm.

No roads connect most towns. Total paved road: about 150 km, linking one pair of settlements. Boats in summer, small planes otherwise. About 88% of the population is Inuit. Greenland has handled its own domestic affairs as an autonomous territory within Denmark since 2009. The northeastern section is entirely national park, 972,000 km² of it, bigger than Egypt, no permanent residents.

Until recently, the geology was mostly of interest to geologists. Then 2019 happened.

Reading the Rocks

This map covers the whole island and charts mineral deposits against the underlying geology. Basement rocks in the south formed roughly 3.8 billion years ago, before any complex life had appeared on Earth. Younger Proterozoic belts built up around that core over hundreds of millions of years after that. When the North Atlantic started opening around 60 million years ago, the western coast got a wave of magmatic activity that produced the Gardar alkaline province in the south. Alkaline igneous systems have unusual chemistry, and that chemistry generated mineral concentrations you simply don’t find in ordinary rock. On the map, look at the southern tip. The deposit symbols are so densely packed that labels start overlapping.

GEUS published a survey in 2023 putting 25 of the EU’s 34 critical raw materials inside Greenland’s borders. Most attention lands on two deposits near Narsaq, a small town in the south. Kvanefjeld has a verified resource of 1.01 billion tonnes carrying roughly 11 million metric tons of rare earth oxides. It should be one of the most significant mining operations on the planet. Uranium is the issue. The ore runs 250 to 350 ppm, and in 2021 Greenland’s parliament banned uranium mining. Kvanefjeld has been stuck ever since. Everyone references it. Nobody mines it. Nearby Tanbreez is actually moving. It has an exploitation license and is targeting production around 2028. Its 28.2-million-tonne resource contains over 27% heavy rare earth elements. The global average is about 5 to 10%. Those are what go into EV motors and wind turbines.

Citronen Fjord near the northern tip holds 85 million tonnes of zinc-lead ore, one of the largest undeveloped zinc deposits on the planet, which is a lot less useful when ships can only reach it in summer. The Amitsoq graphite deposit in the south got a 30-year exploitation license in December 2025. It hadn’t been worked since 1922. Projected output around 80,000 tonnes of concentrate a year.

What Trump Wants

The politics entered in 2019, when Trump floated buying Greenland. Denmark said the idea was absurd. Greenland said the same. Then Trump won in 2024 and the idea came back. This time it had tariff threats against Denmark attached. Waltz, his national security adviser, spelled out the logic as minerals, Arctic access, and national security. Greenland and Denmark said no. By January 2026 at Davos, Trump had shifted to a “framework of a future deal” with NATO’s Rutte. No details have been shared.

The post What Lies Under Greenland’s Ice appeared first on Vivid Maps.

The map below, created by @populationdemography based on 2024 American Community Survey data, shows the percentage of immigrants holding a college degree, broken down by country of birth. The data covers all foreign-born US residents aged 25 and older, regardless of when they arrived or their current legal status, including naturalized citizens.

Among US-born adults specifically, 37% hold a college degree. Among immigrants, the numbers run far above and well below that line.

India tops the list at 82%, followed by Saudi Arabia at 81% and Taiwan at 75%, with Singapore at 74%. These numbers reflect how the US immigration pipeline actually works. H-1B work visas, which dominate immigration flows from India and Taiwan, require a college degree by law. Most people arriving from those countries do so through professional or academic channels, which means the immigrant population ends up highly educated almost by design.

Nigeria at 68% is one of the most unexpected numbers on the whole map. Back in Nigeria, only around 10% of the general population holds a college degree, yet Nigerian immigrants in the US are among the most educated of any origin group.

Countries of Birth with the Highest Share of College-Educated Immigrants in the US

Countries of Birth with the Lowest Share of College-Educated Immigrants in the US

El Salvador and Guatemala come in at just 9%, Honduras and Mexico at 10%. Most immigrants from these countries arrived through humanitarian channels or as economic migrants from rural areas where access to higher education was extremely limited. Portugal at 17% is the most unexpected name in the bottom group. A large share of Portuguese immigrants in the US trace their roots to fishing communities in the Azores Islands, where emigration to the US has been a multi-generational tradition driven by economic necessity rather than academic credentials, concentrated especially in Massachusetts and Rhode Island.

The post Percentage of Immigrants in the United States with a College Degree, by Country of Birth appeared first on Vivid Maps.