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Our World in Data

@ourworldindata.org
48K followers 17 following 3.7K posts

Our World in Data is a free, nonprofit website with a mission to increase understanding of the world’s largest problems and drive informed action to solve them. Based out of Oxford University (@ox.ac.uk), founded by @maxroser.bsky.social.

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Our World in Data @ourworldindata.org · 10h
Other sources & data: ourworldindata.org/grapher/elec... www.iea.org/data-and-sta...
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Our World in Data @ourworldindata.org · 10h
Explore how electricity generation has changed in your own country: ourworldindata.org/grapher/elec...
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Our World in Data @ourworldindata.org · 10h
Deindustrialization has reduced demand, but improvements in energy efficiency — such as the shift from incandescent to LED lightbulbs and the introduction of efficiency standards for appliances — have played an important role too. (written by @hannahritchie.bsky.social)
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Our World in Data @ourworldindata.org · 10h
Sectoral data from the International Energy Agency confirms that electricity consumption in industry has fallen by one-quarter since 2005 (more if we calculate this per person). But residential and commercial electricity use has fallen by just as much.
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Our World in Data @ourworldindata.org · 10h
The most common explanation is deindustrialization: as the economy shifted from manufacturing to services, electricity demand fell. That’s part of the explanation, but far from all of it.
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Our World in Data @ourworldindata.org · 10h
Some of that decline is a change in electricity imports, rather than demand: net imports have increased from 1% of electricity demand in 2010 to 9% in 2025. But it’s still true that the UK consumes much less electricity than it used to.
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Our World in Data @ourworldindata.org · 10h
Its generation per person peaked in 2003 and has fallen by more than a third since then. You can see this in the chart, which shows generation per person since 1920. Today, levels are back to where they were in the late 1960s.
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Our World in Data @ourworldindata.org · 10h
Electricity generation per person in the United Kingdom has fallen by a third from its early-2000s peak. Globally, electricity generation per person has grown by more than 50% this century. In the United Kingdom, things have moved in the opposite direction.
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Our World in Data @ourworldindata.org · 02/10/2026
Until we scale up those alternatives, the world will continue to face the two energy problems of today. Read the article by @maxroser.bsky.social: ourworldindata.org/worlds-energ...
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Our World in Data @ourworldindata.org · 02/10/2026
Once we look at it this way, it becomes clear that the twin energy problems are really the two sides of one big problem. We lack large-scale energy alternatives to fossil fuels that are cheap, safe, and sustainable.
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Our World in Data @ourworldindata.org · 02/10/2026
The problem is larger for the extremely rich, but it is not limited to them. People need access to energy for a good life. However, in a world where fossil fuels are the dominant source of energy, access to modern energy means that carbon emissions are too high.
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Our World in Data @ourworldindata.org · 02/10/2026
This comes at a massive cost to the health of people in energy poverty. The reliance on fuelwood is also the reason why poverty is linked to deforestation. The second energy problem is the one that is more well-known: greenhouse gas emissions are too high.
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Our World in Data @ourworldindata.org · 02/10/2026
The reason that the emissions of the poor are low is that they lack access to modern energy and technology. When people lack access to modern energy sources for cooking and heating, they rely on solid fuel sources — mostly firewood, but also dung and crop waste.
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Our World in Data @ourworldindata.org · 02/10/2026
The world faces two energy problems: hundreds of millions lack access to energy, and most of our energy still produces greenhouse gas emissions. The first energy problem of the world is the problem of energy poverty. People in very poor countries have very low emissions.
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Our World in Data @ourworldindata.org · 01/10/2026
Other sources & data: ourworldindata.org/grapher/fert...
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Our World in Data @ourworldindata.org · 01/10/2026
That’s largely due to fertility falling later and faster in the latter. (written by @eortizospina.bsky.social) Explore the population pyramids of all countries, and compare projections under different assumptions in our interactive tool: ourworldindata.org/population-s...
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Our World in Data @ourworldindata.org · 01/10/2026
Of the six world regions, Latin America is where the median age has increased the most since 2000. It rose by a third, from 23 to 31 years, in a bit less than a generation. Europe’s population is older, but the median age has been rising more quickly in Latin America this century.
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Our World in Data @ourworldindata.org · 01/10/2026
Africa is very young: half of its population is younger than 19. Europe is much older: half of its population is over 42. But there’s a second point that receives less attention in public discussions: how quickly this is changing.
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Our World in Data @ourworldindata.org · 01/10/2026
It shows how the median age has changed across world regions from 2000 to 2023, the most recent year for which the UN publishes estimates. The first thing that stands out is perhaps the least surprising: some regions have much older populations than others.
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Our World in Data @ourworldindata.org · 01/10/2026
Europe is older, but Latin America is aging faster. The median age of a country or region is the age that divides its population into two equal parts: half of the people are older, and half are younger. As the population ages, the median age rises. That’s what this chart tracks.
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Our World in Data @ourworldindata.org · 30/09/2026
(This data update was led by @lcsrg.me.) Explore all of the updated data in our interactive charts: ourworldindata.org/search?datas...
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Our World in Data @ourworldindata.org · 30/09/2026
The update covers all four of our charts on cancer screening. Some countries also use their own age ranges. Sweden, for example, screens women for breast cancer between 40 and 74 instead of 50 and 69. Eurostat flags that roughly a quarter of the values follow a different definition like this.
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Our World in Data @ourworldindata.org · 30/09/2026
We recently updated this data, which now has estimates for 2023 and 2024 for most countries, plus 2025 for the seven that have reported it so far. Spain, Portugal, and Moldova are in it for the first time. So is the United Kingdom, with figures from 2000 to 2019.
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Our World in Data @ourworldindata.org · 30/09/2026
The questionnaire uses a common definition that counts someone as screened if they have had a test in the last two years (or three, for cervical cancer). The chart here shows data for cervical cancer screening among women aged 20 to 69. Sweden screened 83% of them in 2024, and Hungary 6.5%.
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Our World in Data @ourworldindata.org · 30/09/2026
They cover breast, cervical, and colorectal cancer, the three that national screening programs across Europe look for. This data is collected via each country’s screening program. Countries then report it through a joint questionnaire from Eurostat, the OECD, and the World Health Organization.
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Our World in Data @ourworldindata.org · 30/09/2026
How many people do Europe’s cancer screening programs reach? Eurostat, the statistical office of the European Union, publishes yearly figures on cancer screening for 36 European countries, going back to 2000.
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Our World in Data @ourworldindata.org · 29/09/2026
Explore oil production data for more countries and further back in time: ourworldindata.org/grapher/foss... Other sources & data: www.energyinst.org/statistical-...
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Our World in Data @ourworldindata.org · 29/09/2026
This data comes from the Energy Institute’s Statistical Review of World Energy. (written by @hannahritchie.bsky.social and @parriagadap.bsky.social)
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Our World in Data @ourworldindata.org · 29/09/2026
As you can see, the US has been the largest producer for the last nine years, since it overtook Saudi Arabia. Production in the US gradually declined during the 1990s and early 2000s, then increased sharply after 2010 and is now at an all-time high.
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Our World in Data @ourworldindata.org · 29/09/2026
The United States is the world’s largest oil producer. When people think about global oil, their minds often go toward countries in the Middle East. But it’s the United States that is the world’s largest oil producer. The chart shows oil production by country since 1990.
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Our World in Data @ourworldindata.org · 28/09/2026
(This topic update was led by @hannahritchie.bsky.social, @spoonerf.bsky.social, and @maxroser.bsky.social.) Read our new topic page: ourworldindata.org/forests-and-...
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Our World in Data @ourworldindata.org · 28/09/2026
Bringing deforestation to an end is essential to protecting the world’s biodiversity and tackling climate change. On this new version of our topic page, you can find all of our data on forests and deforestation.
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Our World in Data @ourworldindata.org · 28/09/2026
From 2001 to 2023, beef production was, by far, the largest driver, accounting for more than 40% of the total. Oilseeds — dominated by soy and oil palm — were the second largest. Overall, around 70% of deforestation is driven by domestic demand for products. The remaining 30% is for traded products.
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Our World in Data @ourworldindata.org · 28/09/2026
While deforestation rates may have passed their historical peak, the world is still losing large areas of forest each year. Estimates on how much land is deforested each year vary across sources.
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Our World in Data @ourworldindata.org · 28/09/2026
Today, many temperate countries are regrowing forests, while most deforestation takes place in the tropics. Most of Europe and many parts of Asia are seeing gains in forest cover. Countries across the Americas, much of Africa, and parts of South-East Asia are still losing forests.
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Our World in Data @ourworldindata.org · 28/09/2026
The main driver of deforestation has been agriculture: humans clearing forests to make space for grazing and croplands. The peak of global deforestation was in the 1980s and early 1990s. Since then, rates have fallen, but they remain high.
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Our World in Data @ourworldindata.org · 28/09/2026
Today, we're publishing an updated version of our topic page on forests and deforestation. Humans have been cutting down forests for millennia. The world has lost one-third of its forests since the end of the last ice age, 10,000 years ago. Half of this loss occurred in the last century alone.
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Our World in Data @ourworldindata.org · 26/09/2026
Other sources & data: ourworldindata.org/grapher/fore... ourworldindata.org/grapher/fore...
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Our World in Data @ourworldindata.org · 26/09/2026
(written by @hannahritchie.bsky.social) Explore more data on how much foreign aid countries give, and which countries receive it: ourworldindata.org/foreign-aid
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Our World in Data @ourworldindata.org · 26/09/2026
Only Sweden and Italy increased their budgets. The countries shown are the largest donors in dollar terms; some others not shown contribute far more in relative terms: Norway, for example, was the only country to give more than 1% of its national income to foreign aid.
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Our World in Data @ourworldindata.org · 26/09/2026
But many other countries cut their aid contributions, too. In the chart, you can see the change among the largest 10 donors (in dollar terms) from 2024 to 2025. This is given as a share of their gross national income. Contributions fell in eight of the ten countries.
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Our World in Data @ourworldindata.org · 26/09/2026
Aid cuts in the United States — and the shutdown of its agency for international development, USAID — got the most attention, and for good reason: the US is the world’s largest aid donor in dollar terms, so its contributions make a huge difference to the global total.
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Our World in Data @ourworldindata.org · 26/09/2026
Foreign aid contributions fell in 2025 amongst almost all of the top 10 donors. In 2025, the amount of foreign aid given by the world’s richest countries fell by almost a quarter. That amounted to a reduction of roughly US$50 billion.
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Our World in Data @ourworldindata.org · 25/09/2026
There are real reasons to believe that this century doesn’t have to replicate the destruction of the last one. Read the article by @hannahritchie.bsky.social: ourworldindata.org/world-lost-o...
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Our World in Data @ourworldindata.org · 25/09/2026
Since 1961, the amount of land we use for agriculture has increased by only 7%. Meanwhile, the global population has more than doubled, from 3.1 to 8 billion. This means that agricultural land per person has more than halved.
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Our World in Data @ourworldindata.org · 25/09/2026
Urban land accounts for just 1% of global habitable land. The world passed “peak deforestation” in the 1980s, and it has been on the decline since then. Improvements in crop yields mean the per capita demand for agricultural land continues to fall.
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Our World in Data @ourworldindata.org · 25/09/2026
Deforestation is not a new problem: relatively small populations of the past were capable of driving a large amount of forest loss. But deforestation accelerated over the last century, driven by the continued expansion of land for agriculture.
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Our World in Data @ourworldindata.org · 25/09/2026
Only 10% of this was lost in the first half of this period, until 5,000 years ago. The turn of the 20th century is when global forest loss reached the halfway point: half of total forest loss occurred from 8,000 BCE to 1900; the other half occurred in the last century alone.
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Our World in Data @ourworldindata.org · 25/09/2026
Shortly after the end of the last great ice age — 10,000 years ago — 57% of the world’s habitable land was covered by forest. That’s 6 billion hectares. Today, only 4 billion hectares are left. The world has lost one-third of its forests, an area twice the size of the United States.
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Our World in Data @ourworldindata.org · 24/09/2026
Explore how electric car sales are changing in markets across the world: ourworldindata.org/electric-car...
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