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Our World in Data

@OurWorldInData309k followers

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.

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1Nov 22, '24The global COVID-19 vaccination effort is estimated to have saved around 20 million lives — in just its first year.17.4×820k2.4k733393
2Oct 3, '23How many animals get slaughtered every day? Hundreds of millions of animals get killed for meat every day. Read more: From our new page on animal welfare:15.9×751k914291144
3Dec 27, '22The end of poverty is possible. Each country shown on this chart achieved a large decline in extreme poverty over the last generation. This is one of the most important lessons we 11.5×542k1.9k665145
4Sep 17, '25Californians now travel millions of miles each month in driverless taxis— After only two years, California’s driverless taxis now transport passengers for more than four million mi11.3×532k533127119
5Mar 6, '24The timing of the peak cherry tree blossom is influenced by spring temperatures. Based on data from Japan stretching back to the year 812 (!), we see that in recent centuries the p9.2×436k1.7k640238
6Mar 15, '24Weather forecasting has come a long way. The biggest improvements we’ve seen are for longer timeframes. By the early 2000s, 5-day forecasts were “highly accurate” and 7-day forecas8.0×378k818194140
7Jul 17, '21Ecuador is now vaccinating very rapidly. 12% of the population received a vaccine in the last week. [here is all our data for countries around the world: ]7.8×03.4k1.2k21
8Jan 27, '23In today's Biweekly Digest, we cover: • Why life expectancy in US is lower than in other rich countries • Our redesigned work on Democracy • We're hiring a Data Scientist • Help us7.6×359k55316770
9Mar 24, '21The decline of COVID in Israel. This chart is indexed to the peak of cases and shows the relative decline by age group since then. For some time there was a slight temporary rise a6.1×02.3k94471
10May 23, '23The change in the world population is determined by 2 metrics: the number of babies born & the number of people dying Toward the end of this century, the number of deaths is pr5.9×279k53519867
11Jan 28, '25The world has probably passed “peak air pollution”— Global emissions of local air pollutants have probably passed their peak. The chart shows estimates of global emissions of pollu5.2×245k2.1k562383
12Jan 24, '23How different would your life be if you never went to school & didn’t learn how to read & write? This is the reality for the 58 million children who don't go to school. As 5.1×241k75520832
13Oct 27, '21The German-speaking countries stand out in Western Europe: Germany, Switzerland, and Austria in the three last places. [all our data: ]4.9×01.8k61385
14Aug 8, '24There are two ways to produce seafood: catch fish in the wild or farm your own. Seafood farming is often called “aquaculture”. Aquaculture is dominated by the farming of fish, but 4.9×231k83719396
15Jun 24, '24According to the latest Global Burden of Disease Study — published last month by the Institute of Health Metrics and Evaluation (IHME) — COVID-19 was the third leading cause of dea4.5×211k588292133
16Sep 5, '24Vaccines account for 40% of the decline in infant mortality over the last 50 years. Infant mortality rates have plummeted over the last 50 years. Globally, they’ve fallen by over t4.1×195k1.8k679265
17Nov 4, '24HPV vaccines offer a rare opportunity to effectively eliminate cervical cancer. By taking this opportunity, it’s possible to save the lives of hundreds of thousands of women each y4.0×189k78825580
18Jun 3, '19What people die from, what they Google, and what the media covers. Our latest post:3.8×01.1k76967
19Nov 25, '21💉 7.8 billion COVID vaccine doses have been administered 👥 53% of world population with at least 1 dose 🌍 Total doses per 100 people High-income countries: 147 Upper-middle inco3.6×089263266
20Oct 31, '21Share of electricity that comes from fossil fuels: 🇿🇦 South Africa: 89% 🇦🇺 Australia: 75% 🇮🇳 India: 74% 🇯🇵 Japan: 69% 🇨🇳 China: 66% 🌍 World: 61% 🇺🇸 USA: 60% 🇩🇪 Germa3.5×01.2k597100
21Apr 16, '22How many grams of CO₂ are emitted per each kilowatt-hour of electricity? Carbon intensity of electricity across European countries.3.5×01.6k41199
22Dec 10, '24The world is awful. The world is much better. The world can be much better. All three statements are true at the same time. Understanding this is key to solving big global problems3.5×163k1.1k320225
23Nov 6, '24You want to reduce the carbon footprint of your food? Focus on what you eat, not whether your food is local. Transport emissions are very small for most food products.3.4×163k1.2k459361
24May 20, '23Two centuries ago the majority of people was extremely poor, no matter where they were born. Back then it was widely believed that widespread poverty was inevitable. But this turne3.3×157k66624594
25Mar 27, '23The timing of the peak cherry tree blossom is influenced by spring temperatures. Based on data from Japan stretching back to the year 812 (!), we see that in recent centuries the p3.2×153k58119259
26Jan 25, '22The COVID death rate by vaccination status in the US. [From our post by @redouad and @maxcroser on death rates by vaccination status: ]3.1×0973509100
27Dec 2, '24Measles vaccination has saved an estimated 94 million lives globally since 1974. Of those, 92 million were children. The chart shows the number of lives saved by different childhoo3.1×146k42620454
28Feb 9, '24In China in 1981, 97% of people in the countryside lived in extreme poverty. By 2020, the share was well below 1%. Large economic growth made it possible for hundreds of millions o3.1×146k64820476
29Feb 26, '25Weather forecasts have become much more accurate. A four-day forecast today is as accurate as a one-day forecast 30 years ago. The chart here shows the difference between the forec2.9×139k1.3k299269
30Nov 13, '24All three statements are true at the same time2.7×129k2k404250
31Jun 7, '23How has the world managed to feed a rapidly growing population with ever-shrinking land resources? A big part has been increasing crop yields — e.g., we can now produce more than t2.7×129k67027262
32Sep 13, '24Chile produced 9.4% of its primary energy from solar in 2023 — the highest in any country that year. According to the Energy Institute’s Statistical Review of World Energy, in 20232.7×128k1.4k468130
33Sep 4, '24The average worker in wealthy countries now works only about half as many hours per year as in the late 19th century. Based on data from economic historians Michael Huberman and Ch2.6×123k466161112
34Aug 21, '20Some countries responded successfully to the pandemic – and more broadly, some are much more successful in protecting their population’s health. We contributed to @exemplarshealth,2.6×01.1k25222
35Oct 24, '24People tend to think there are more immigrants in their country than there really are. In the United States, for example, the average person believes that 33% of people were not bo2.6×122k873354201
36Jan 3All three statements are true at the same time—2.6×122k2.2k403265
37Dec 6, '24Around the world, 10 cows, 47 pigs, and 2,400 chickens get killed for meat every second. Recent estimates suggest that 99% of livestock in the United States is factory-farmed. Glob2.6×121k646225110
38Sep 11, '25Technology can change the world in ways that are unimaginable until they happen. Switching on an electric light would have been unimaginable for our medieval ancestors. In their ch2.5×119k873260472
39Jun 28, '20The world population has increased by 145% since 1961. But because yields of cereals increased even more (+200%), it became possible to produce more cereal per capita while not nee2.5×096142451
40Jun 10, '24Eating meat with a lower carbon footprint often means killing more animals and treating them more poorly. @hannahritchie presents the research on the trade-offs between environment2.5×117k473122160
41Jan 17, '23How many people die and how many are born each year? And what does this mean for the population, now and in the coming decades? Explore the data in our interactive charts, and read2.4×113k40514448
42Oct 7, '25Does the news reflect what we die from? More than 80% of people — including surveyed Americans, Brits, Germans, and Italians — say they follow the news because they “want to know w2.4×113k599186217
43Jan 17, '25In the last 30 years, almost everybody in Bangladesh gained access to basic electricity— In 1991, around 14% of people in Bangladesh had access to electricity. Thirty years later, 2.3×110k67714473
44Mar 17, '25Which countries have contributed the most to historical CO₂ emissions? When we emit carbon dioxide (CO₂) into the atmosphere, most of it stays there for centuries or millennia. Thi2.3×109k1.2k460179
45Oct 24, '25China’s internal combustion car sales peaked in 2017 as electric vehicles took off— Electric cars have become incredibly popular in China. In 2020, one in eighteen new cars sold wa2.2×104k611185103
46Mar 19, '25Global cereal production has grown much faster than population in the last half-century— The world's population has more than doubled over the last 60 years, but global food produc2.1×101k805275139
47Mar 28, '24Nuclear and modern renewable energy sources are both vastly safer and cleaner than fossil fuels. From the perspective of both human health and climate change, it matters less wheth2.1×100k1.1k390131
48Jul 4, '24According to the most recent data from the Energy Institute’s Statistical Review of World Energy, India now consumes more coal than the continents of Europe and North America combi2.1×99k51318576
49Oct 1, '25France opened a flurry of nuclear power plants in the 1980s and 1990s, giving it low-carbon electricity ever since— At the turn of the millennium, France had one of the lowest-carb2.1×98k45010562
50Jun 13, '24One of the most transformative changes in technology over the last few decades has been the massive drop in the cost of clean energy. Solar photovoltaic costs have fallen by 90% in2.1×97k820289139
51Mar 16, '22"Problems are solvable. Given enough time we can end the horrors of today. Poverty is not inevitable. Diseases that are incurable today might be curable in just a few generations."2.0×080831980
52Jul 14, '2264,000 retweets and 365,000 likes. This might be the most widely shared @OurWorldInData chart ever. If you want to know "what's going on here", this is our post from which this cha2.0×086327491
53May 24, '24The number of people killed in disasters has fallen a lot over the last century, despite there being four times as many people. Deaths have declined not because disasters are now l2.0×94k61320982
54Mar 26, '21Our data on COVID-19 vaccinations is updated: Share of people with at least 1 dose: 🇮🇱 Israel 60% 🇬🇧 UK 43% 🇨🇱 Chile 32% 🇧🇭 Bahrain 27% 🇺🇸 US 26% 🇷🇸 Serbia 20% 🇭🇺 Hun2.0×07323267
55Apr 29, '24In 1990, over 9% of the world's newborns did not survive beyond age five. By 2021, this child mortality rate had declined to 3.7%. Thanks to progress in global health, 132 million 2.0×92k40011531
56Jul 1, '24Energy demand in China has increased rapidly over the last few decades due to rising incomes and industrialization. The country now uses about the same amount of energy per person 1.9×90k45915370
57Dec 2, '24Sometimes, the most important news is when something *isn’t* happening: Since the last plane crash by a US airline, they have transported passengers for more than two *light-years*1.8×85k854168104
58Mar 31, '21An UPDATE on the decline of Covid in Israel. This chart is indexed to the peak of cases and shows the relative decline by age group since then. Since the peak cases have declined b1.7×06902517
59Sep 15, '25China's use of fertilizers peaked a decade ago— Since the 1960s, China’s population has more than doubled. Despite having more than twice as many mouths to feed, the amount of food1.7×80k783195177
60Jan 11, '22'The history of the end of poverty has just begun' We just published @MaxCRoser's new @OurWorldInData post:1.7×071517768
61Oct 8, '25Declining child mortality, fast and slow— As this chart shows, two centuries ago, about one in three children in Sweden died before they were five years old. Since then, the child 1.6×77k51611683
62Oct 3, '24How far apart are the incomes of the rich and poor in different countries? The chart shows how incomes are spread in several countries in different world regions. The data comes fr1.6×77k649203226
63Dec 30, '21It is the first time during the pandemic that we report more than 1 million confirmed cases per day as the average over 7 days. [source with all our data ]1.6×051831713
64Mar 17, '23Despite their brief history, computers and AI have fundamentally changed what we see, what we know, and what we do. Little is as important for the future of the world, and our own 1.6×75k41916981
65Feb 18, '25More land animals than ever before are slaughtered for meat— Global livestock numbers — tracked by the UN Food and Agriculture Organization since 1961 — have surged, with particula1.6×75k54020196
66Sep 18, '20Where do global greenhouse gas emissions come from? → 73.2% from energy → 18.4% from agriculture, forestry, land use → 5.2% direct industry → 3.2% from waste Our latest article loo1.6×048328166
67Dec 16, '21How many have died worldwide in the pandemic? One way to answer this question is to estimate the global excess mortality since the start of the pandemic. The Economist did this and1.5×048129346
68Jan 23, '22What are the safest & cleanest sources of energy? All energy sources have negative effects, but they differ enormously in size: Fossil fuels are the dirtiest & most dangero1.5×057125655
69Feb 22, '23This chart gives an overview of 3.4 million years of accelerating technological change. We live at a time when the world can change dramatically within our lifetime. From @maxcrose1.5×71k476174112
70Dec 4, '24In most places in the world, power from new renewables is now cheaper than power from new fossil fuels. Why did renewables become so cheap so fast? The answer: learning curves. For1.5×70k509216114
71Aug 27, '21Panama vaccinated a third of its entire population in the last month. [→ ]1.4×06152211
72Apr 2, '25China reduced extreme poverty rapidly, but Indonesia hasn't been far behind— China is often the poster child for rapid reductions in poverty, and for good reason: in the early 19801.4×67k590201135
73Nov 1, '22What is the best way to reduce the carbon footprint of your diet? Plant-based protein sources still have a lower footprint than the lowest-impact meat products, despite large diffe1.4×055720470
74Feb 10, '20What are the safest sources of energy? Death rates from modern renewables & nuclear are similar, & orders of magnitude lower than fossil fuels Moving away from fossil fuels1.4×046126232
75Jun 29, '21According to our count at @OurWorldInData 3 billion vaccine doses have now been administered. – The first half a billion took 114 days. – The last half a billion were administered 1.4×05842308
76Oct 4, '24Mining for coal is much more resource-intensive than renewables or nuclear power Read about this and much more in today's Biweekly Digest:1.4×65k626241159
77Jan 2, '21How fast are different countries vaccinating their population against COVID? Israel: 11.6% UK: 1.5% US: 0.9% Germany: 0.2% World: 0.13% → Data for more countries you find in our CO1.4×044824811
78Mar 7, '21We had 100 million visitors to our site in the last 365 days!1.3×0942346
79Jan 2, '21Our data on COVID-19 vaccinations has been updated: Doses administered: 🌏 World 11.4M 🇨🇳 China 4.5M 🇺🇸 United States 4.2M 🇮🇱 Israel 1M 🇬🇧 United Kingdom 1M 🇩🇪 Germany 181.3×041621517
80May 13, '25If you want to reduce the carbon footprint of your diet, less meat is nearly always better than sustainable meat.1.3×60k756259109
81May 15, '20Without data we can not understand the pandemic. And so we set ourselves the goal of building the most helpful global dashboard to understand what is happening. Now it is out: 👇A 1.3×042320460
82Feb 17, '25Global sales of combustion engine cars have peaked— To decarbonize road transport, the world must move away from petrol (gasoline) and diesel cars and towards electric vehicles and1.3×59k48515770
83Sep 27, '24New petrol and diesel cars are becoming a rarity in Norway. In 2023, 93% of new cars sold in the country were electric. This is shown in the chart, based on data from the Internati1.2×58k46312446
84Aug 1, '22Social connections are one of the most important factors for your happiness and health.1.2×055011584
85Jan 13, '25The world has passed “peak child”— The number of children in the world has stopped growing. This moment in time was given the term “peak child” by the late Hans Rosling. The chart 1.2×57k509207102
86Jun 2, '25Greece is turning its back on coal and replacing it with solar and wind— To tackle climate change, the world must transition away from fossil fuels and towards low-carbon power sou1.2×55k60615550
87Oct 10, '25Over the last 60 years, the world population has more than doubled. This has inevitably reduced the land available per person to live and grow food. How have we managed to feed a r1.1×54k471124105
88Jul 29, '24In 1820, only 1 in 10 people over the age of 15 could read. Today, the corresponding global literacy rate — the share of adults aged 15 and older who can read and write — is 87%. T1.1×54k41614453
89Sep 24, '24Low-carbon technologies need far less mining than fossil fuels Read the new article by @_HannahRitchie:1.1×54k555232111
90May 3, '21The number of daily COVID deaths in UK since the peak three months ago. This is plotted on a logarithmic axis. A straight line on a log axis shows exponential change with a constan1.1×051313613
91Jun 6, '22Hunting and habitat loss drove many large mammals in Europe close to extinction. But the continent’s mammal populations are making a comeback thanks to conservation efforts and mor1.1×051313234
92May 15, '22The chart shows one of the most important achievements in humanity's history — in the last 200 years the majority of the world left the very worst poverty behind. [from @MaxCRoser'1.0×043517031
93May 15, '25What do governments spend money on? In the chart, we see spending in different categories, such as defense, health, and education, as a share of total government spending. This is 1.0×47k551183172
94Aug 26, '21Electricity in the UK was for decades dominated by coal (the worst source for the climate). But this is now largely history. Coal declined down to 2%. As @MaxCRoser explains in thi1.0×045913315
95May 12, '25China is moving much faster on electric cars than the EU or the United States— Road transport is responsible for around three-quarters of global carbon dioxide emissions from trans1.0×47k46816163
96Apr 9, '21We are very happy that our work is useful for so many. In the last 365 days had more than 100 million visitors and in addition to this our work is cited thousands of times every da1.0×0602659
97Jul 6, '21Spain and Portugal are now vaccinating very rapidly. [you find this data – and all our COVID data – in our Explorer: ]0.9×04251315
98Feb 13, '25Almost all livestock in the United States is factory-farmed— It’s difficult to quantify animal suffering in a single number, but one metric often used to measure living conditions 0.9×44k52118171
99Nov 30, '21We won a prize for our work on the pandemic! The @TheOxfordTrust awarded us the "Covid Innovation Heroes Awards­ 2021”: We are very grateful for this recognition here in our hometo0.9×0583512
100Sep 29, '20We teamed up with our friends at @Kurz_Gesagt again to make a video about climate change. It looks at the 4 factors driving CO₂ emissions, and how we can use these levers to find s0.8×0470739
101Jul 18, '25One-third of cars on the road in Norway are now electric— Norway is leading the way in the transition from petrol to electric cars. Almost every new car sold in Norway is electric.0.6×29k4869445

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