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lucas rodes-guirao

@lcsrg.me
927 followers 76 following 32 posts

data @ourworldindata.org open source, open data, demography, geography nerd occasionally publishing in spanish 🌱

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Reposted by lucas rodes-guirao
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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Bastian Herre @bastianherre.bsky.social · 24/08/2026
New article by me, @eortizospina.bsky.social, and @lcsrg.me! How elections spread, voting rights expanded, and political competition developed over the last 200 years — and billions of people won more of a say in the important decisions that affect their lives. ourworldindata.org/the-rise-of-...
ourworldindata.org
The rise of electoral democracy
How elections spread, voting rights expanded, and political competition developed around the world over the last two centuries.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 22/08/2026
Thailand’s population may have already peaked. Many countries are in a fairly unique demographic position in history: their populations are shrinking not due to a temporary shock but to sustained structural decline.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 17/08/2026
📝 New article — Which countries have already passed peak population, and when will the rest do so? Many countries around the world are in a unique position: rather than having a constant or growing population, their populations are starting to shrink.
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Our World in Data @ourworldindata.org · 27/07/2026
How have humans reshaped the world’s land over the last 12,000 years? Over thousands of years, humans have gradually transformed the Earth’s surface — clearing land for agriculture (crops and grazing animals) and building settlements.
Stacked area chart of total land area used for cropland, grazing land and built-up areas from year 0 to 2025, where grazing makes up most of the area and both grazing and cropland rise sharply in the modern era with total agricultural land approaching 5 billion hectares. Data source: HYDE (2025). License: CC BY.
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Our World in Data @ourworldindata.org · 17/06/2026
Our chart on CO₂ emissions per capita — relying on data from the Global Carbon Project — was part of the national baccalauréat exam in France yesterday! Tens of thousands of high school students had to analyze and discuss the data to write about the United States and environmental issues.
An image from the national baccalauréat exam in France in June 2026, which features a chart on CO2 emissions from Our World in Data (showing data from the Global Carbon Project).
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Reposted by lucas rodes-guirao
Bastian Herre @bastianherre.bsky.social · 18/03/2026
New data from V-Dem, which tracks democracy worldwide, points to a sharp decline in US democracy in 2025. Checks on the government and the freedom of expression have especially declined. But the data also points to what could halt and reverse the decline. Here’s what the data shows. 🧵
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 17/02/2026
The share of people who identify as religious has fallen across many Western countries— Debates over whether religion is booming or dying are common. What does the data say?
Religious identification has fallen across many Western countries

Line chart showing the share of people who identify as religious in 2010 and 2020 for six countries. Values by country: United States 84% in 2010 to 70% in 2020 (down 14 percentage points); Chile 86% to 70% (down 16); Canada 76% to 65% (down 11); Australia 75% to 58% (down 17); United Kingdom 71% to 60% (down 11); France 66% to 57% (down 9). Key insight: identification as religious declined in all six countries between 2010 and 2020. Data source: Pew Research Centre (2025). Chart is licensed CC BY to Our World in Data.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 03/02/2026
What is the most common religious affiliation in each country? Three-quarters of people worldwide say they are religious. But rates of religious identity can vary a lot across countries, and so do the particular religions people follow.
What is the most common religious affiliation in each country?

Choropleth world map showing the most common religion reported by people in each country. Key pattern: Christians are the dominant group across the Americas, much of Europe, large parts of sub‑Saharan Africa, Australia and many Pacific nations. Muslims are most common across North Africa, the Middle East and many countries in West, Central and parts of South Asia. Hindus are most common in India (and Nepal). Buddhists are most common in several East and Southeast Asian countries. The religiously unaffiliated are the largest group in China and some other East Asian countries. Jews are the largest group only in Israel. A small number of countries are categorized as Other.

Data source: Pew Research Centre (2025). Data refer to the year 2020. Note: Based on how people describe their own religious identity, regardless of their practices or beliefs.
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lucas rodes-guirao @lcsrg.me · 20/05/2025
current mood: starving but there is a plan and I’ll be eating in <5 minutes. am i hungppy?
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lucas rodes-guirao @lcsrg.me · 08/05/2025
we act like nothing happened after dreaming intense shit. today i had a nightmare, where i was on a plane and we crashed. I somehow survived, but the whole experience was very intense. It felt so real. I then woke up and went to work, as usual lol. come on
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lucas rodes-guirao @lcsrg.me · 21/03/2025
I think we have underestimated how easy it has been to type years like "2020," "2022," and even "2021," "2023," etc. The physical distance between each key has been small. Now, "2025" is a bit annoying. The "5" is too far from either the "2" or the "0". Years like "2068" are so bad.
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Reposted by lucas rodes-guirao
Saloni @scientificdiscovery.dev · 24/02/2025
New article by me! It's a common mistake to think the TFR is a prediction of the average number of children women will have over their lifetimes. But it's not. The TFR can decline even when the eventual number of children per woman stays constant or even increases; the opposite can happen too. 🧵
A line graph compares two measures of fertility rates in Sweden over time: the total fertility rate and the completed cohort fertility rate.

The total fertility rate is depicted using a red line, which shows a downward trend starting around the early 1900s, with fluctuations and a gradual decline to about 1.5 in 2022. 

The completed cohort fertility rate is illustrated with a blue line, with the time axis showing the women's birth year. It shows an initial decline followed by a stable fertility rate.

A note at the bottom states that the completed cohort fertility rate has been shifted by 30 years to align with the respective birth years of women. The data source is the Human Fertility Database (2024) and the chart is published by Our World in Data.
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Reposted by lucas rodes-guirao
Saloni @scientificdiscovery.dev · 24/02/2025
Today, we have a new page on fertility data on Our World in Data! It has lots of new charts on a wide range of measures such as parental ages at birth, teenage birth rates, twin birth rates, the use of reproductive technologies, and more. Explore it all here: ourworldindata.org/fertility-rate
Chart showing the average age of mothers at childbirth by birth orderChart showing the share of women who have had a given number of births over timeChart showing the share of deliveries that are twins over timeChart showing the age distribution of women when they give birth, and how that has changed for women of different birth cohorts.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 12/02/2025
Spring no more: France’s shift in birth patterns
A line graph depicting the most common birth month in France from 1861 to 2022, with the horizontal axis representing months from January to December and the vertical axis indicating years. Each year shows a line indicating the month with the highest average birth rate per day, with varying colors representing different time periods. 

In the late 19th and early 20th centuries, lines often cluster around spring months, indicating this as the most common season for births. Disruptions during World Wars I and II are noted, as birth rates shifted temporarily. Since the late 20th century, the trend has changed, with late summer and autumn months becoming the most common for births.

The data source is the Human Mortality Database (2024) and the chart is published on OurWorldinData.org, and is licensed under CC-BY by the authors, Saloni Dattani and Lucas Rodés-Guirao.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 10/02/2025
The twin baby boom
The chart titled "Share of births that are twins" displays the percentage of twin births over time, spanning from 1858 to 2021. The vertical axis represents the share of births that are twins, ranging from 0% to 2%.

There are five colored lines, each representing a different country: the United States, France, Canada, Australia, and England and Wales. Throughout the years, the percentage of twin births shows a noticeable increase in each of the countries shown, particularly from the 1980s.

A note on the chart indicates that delayed childbearing, alongside technologies such as IVF, has contributed to this rise in twin births. 

The data for this chart is sourced from the Human Multiple Births Database in 2024. The chart is credited under a Creative Commons BY license, and is published by Our World in Data.
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lucas rodes-guirao @lcsrg.me · 03/01/2025
What country has a larger population? Sometimes the difference is of ~5%. Values according to UN WPP (2024).
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 20/12/2024
For most people, international migration means crossing a nearby border, not an ocean
Sankey chart showing that most people who leave their home country stay on the same continent, rather than moving to a new one.
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lucas rodes-guirao @lcsrg.me · 19/12/2024
I just noticed that @un.org have re-designed their WPP downloads page: population.un.org/wpp/downloads. Looks great! One can now easily access and download earlier releases from 1998-2022
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lucas rodes-guirao @lcsrg.me · 10/12/2024
i'm surprised that nowadays people still buy things made with fur. It just does not make sense.
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Reposted by lucas rodes-guirao
Saloni @scientificdiscovery.dev · 09/12/2024
Americans are now one-third less likely to die from cancer at the same ages as Americans in 1990
How has the risk of dying from cancer changed in the United States?

To understand this, we can look at national cancer death rates in the United States.

The gray line shows the crude rate, which is the rate of deaths from cancer per 100,000 people. It has risen between 1950 and 1990 and has fallen slightly since then.

However, cancer death rates rise sharply with age, and the age of the US population has increased since 1950, so we would expect cancer death rates to rise for that reason alone.

What if we adjust for the increased age of the US population?

The red line, the age-standardized rate, shows this. It shows the cancer death rate if the age structure of the US population was held constant throughout.

This shows a slight rise until 1990 and then a significant decline; rates have fallen by one-third.

This means Americans are now one-third less likely to die from cancer at the same ages as Americans in 1990.

This comes from several factors: better screening and earlier diagnosis, medical advances in cancer treatments, and public health efforts to reduce risk factors like smoking and exposure to carcinogens.
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 10/12/2024
The 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 problems. We believe data & research can help us understand both the problems we face & the progress that’s possible. 🧵
A chart in three parts showing data on child mortality to make the points that "The world is awful. The world is much better. The world can be much better. All three statements are true at the same time."
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Reposted by lucas rodes-guirao
Esteban Ortiz-Ospina @eortizospina.bsky.social · 07/12/2024
Good opportunity to point out a nice OWID feature: interactive charts have dynamic social media preview cards.

If you adjust the chart parameters (add countries, change timeframe, etc.), the URL updates automatically. Share the link, and the social card shows exactly the view you customized ✨
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lucas rodes-guirao @lcsrg.me · 08/12/2024
Spent a night in a rural all-vegan hotel. Can’t ask for more! In Lleida province; a must if you are around Barcelona 😊
Traditional catalan masia in rural area, in the province of LleidaComplete double rainbow
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lucas rodes-guirao @lcsrg.me · 06/12/2024
there is no need
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lucas rodes-guirao @lcsrg.me · 05/12/2024
The life expectancy in Cambodia in the mid-1970s dropped to almost 11 years
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lucas rodes-guirao @lcsrg.me · 05/12/2024
software projects are like knives. you have to sharpen them now and then, otherwise you can’t use them after a while.
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Reposted by lucas rodes-guirao
Fiona Spooner @spoonerf.bsky.social · 29/11/2024
Until 2017, the age group with the greatest number of deaths globally was those aged under five years. An interactive version of the chart can be found here: ourworldindata.org/grapher/annu...
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Reposted by lucas rodes-guirao
Saloni @scientificdiscovery.dev · 04/12/2024
This was interesting, but I can't tell if some of you are trolling.
Survey responses to the question When does human aging begin? The potential answers include gametogenesis, conception, birth, 9 years, 20 years, 30 years. Responses are widely spread except no one responded 30 years.
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Reposted by lucas rodes-guirao
Esteban Ortiz-Ospina @eortizospina.bsky.social · 29/11/2024
Estamos experimentando con publicar algunas gráficas de OWID en español. Por ahora iniciamos con esta cuenta de instagram: www.instagram.com/ourworldinda... La gráfica de hoy: distancia de ingresos entre el 10% más rico y el 10% más pobre (después de impuestos)
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lucas rodes-guirao @lcsrg.me · 29/11/2024
The #HMD by @hmdatabase.bsky.social is quite impressive. So many indicators, so granular. Thanks for this invaluable resource! Available at mortality.org
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lucas rodes-guirao @lcsrg.me · 28/11/2024
Today, I'll examine mortality data. This data tells the stories of wars, famines, and other disasters in the last century. It's sad to look at but necessary. I'm also happy to see that, overall, indicators have improved globally.
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Reposted by lucas rodes-guirao
Max Roser @maxroser.bsky.social · 27/11/2024
Few people even know about this; when people are asked in surveys how child mortality has changed the majority says it has stagnated or increased. If you consider that many don't know about humanity's biggest achievement, then it's not surprising that many are so pessimistic about our future.
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lucas rodes-guirao @lcsrg.me · 22/11/2024
✍️ my colleague @scientificdiscovery.dev wrote an article some time ago explaining the differences between period & cohort measures: ourworldindata.org/period-versu... a must-read!
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Reposted by lucas rodes-guirao
Our World in Data @ourworldindata.org · 21/11/2024
We now have an Instagram account in Spanish! ¡Ya tenemos una cuenta de Instagram en español!
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Daniel Bachler @danielbachler.de · 21/11/2024
Using the Chart Data API is straightforward! Here’s an example Jupyter notebook that fetches data and metadata using Python: colab.research.google.com/drive/1HDcqC...
A screenshot of a Jupyter notebook that uses our Chart Data API using python and pandas.
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Daniel Bachler @danielbachler.de · 21/11/2024
At @ourworldindata.org, we’ve just launched new data download options and a Chart Data API to make it even easier to access and reuse the data on our site! Here’s a quick overview of what’s new: 🧵
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lucas rodes-guirao @lcsrg.me · 21/11/2024
Today, I will be looking at some fertility data. The source provides the data as several text files. I'll have to inspect them and combine them into fewer CSVs.
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lucas rodes-guirao @lcsrg.me · 20/11/2024
hemos lanzado un pequeño experimento: OWID en español en Instagram 🎉: www.instagram.com/ourworldinda...! iremos publicando una selección de nuestras gráficas 📊, sigue la cuenta estar al día!
Instagram account "@ourworldindata_es", which just launched. This is the Spanish version of the already existing account "@ourworldindata".
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lucas rodes-guirao @lcsrg.me · 20/11/2024
Our codebase for managing data pipelines has increased significantly, and I often lose track of some of the great functions my colleagues have added. Let's add a 'tips' section to our docs. It doesn't need to be complete, but we can start small and encourage others to contribute there.
docs.owid.io
Guides - ETL documentation
Learn about the ETL pipeline at Our World in Data.
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lucas rodes-guirao @lcsrg.me · 19/11/2024
✍️ let's start the day cleaning some bits here and there from our technical documentation (docs.owid.io/projects/etl/).
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Saloni @scientificdiscovery.dev · 18/11/2024
New article by me & Lucas at Our World in Data! The COVID-19 pandemic is estimated to have killed more than 25 million people; it caused grief & suffering among their loved ones, impacted people's health worldwide & disrupted work & lifestyles. We look back on the pandemic with 17 charts:
ourworldindata.org
17 key charts to understand the COVID-19 pandemic
The pandemic has resulted in over twenty million deaths. In this article, we review the key insights from global data on COVID-19.
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Saloni @scientificdiscovery.dev · 18/11/2024
Big new article by me, Edouard Mathieu and Lucas Rodés-Guirao: When COVID-19 spread worldwide, our small team at Our World in Data pivoted to compiling daily data of global importance. It became the primary global source for many COVID-19 indicators in a few months. This is how it happened! 🧵
ourworldindata.org
How our team at Our World in Data became a global data source on COVID-19
Our small team made COVID-19 data clear, reliable, and accessible to a global audience. This is how it happened.
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lucas rodes-guirao @lcsrg.me · 17/11/2024
was missing some flying animal
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