How major sources collect data on conflicts and conflict deaths, and when to use which oneThere are many ways to measure armed conflicts and conflict deaths. What approaches do different researchers take? And when is which approach best?By Bastian Herre — October 13, 2023
How does the risk of death change as we age – and how has this changed over time?Death rates decline rapidly after birth but rise again in adolescence. From adulthood onwards, they rise exponentially.By Saloni Dattani — October 13, 2023
Welcoming Rachel Glennerster and Andrew DilnotWe are very excited to share that Rachel Glennerster and Andrew Dilnot have joined our Board of Trustees.By Max Roser and Esteban Ortiz-Ospina — October 02, 2023
Help us build a public good for the world: a letter from our founder, Max RoserOur small, dedicated team of experts is building more than a website; our ambition is to build a public good for the world. In this letter, we explain why your support is crucial for us to achieve our mission.By Max Roser — September 30, 2023
How much CO2 can the world emit while keeping warming below 1.5°C and 2°C?The budget to keep temperatures below 1.5°C is less than a decade of current emissions. For 2°C, it’s less than three decades.By Hannah Ritchie — September 29, 2023
Per capita, national, historical: how do countries compare on CO2 metrics?There are many ways to measure countries’ contributions to climate change. What do they tell us?By Hannah Ritchie, Pablo Rosado and Max Roser — September 27, 2023
How many animals get slaughtered every day?Hundreds of millions of animals get killed for meat every day.By Max Roser — September 26, 2023
We published a new topic page on animal welfareHow many animals are slaughtered every year? How do welfare standards vary across the world? Explore data and research on animal welfare.By Hannah Ritchie, Pablo Rosado and Max Roser — September 25, 2023
We updated our topic page on artificial intelligenceOur page on artificial intelligence has been enriched with key insights and 23 new charts.By Charlie Giattino, Edouard Mathieu, Veronika Samborska and Max Roser — September 21, 2023
We published a new topic page on causes of deathTo find ways to save lives, it’s essential to know what people are dying from. Explore global data and research on causes of death.By Saloni Dattani, Fiona Spooner, Hannah Ritchie and Max Roser — September 05, 2023
Which form of transport has the smallest carbon footprint?How can individuals reduce their emissions from transport?By Hannah Ritchie — August 30, 2023
Terrorism affects some countries much more than othersExplore key insights, 4 articles, and 25 charts on terrorism and how it has changed over time.By Bastian Herre, Veronika Samborska, Hannah Ritchie and Max Roser — August 30, 2023
The Global Terrorism Database: how do researchers measure terrorism?There are different approaches to measuring terrorism. Here is the approach of the Global Terrorism Database, a leading source of terrorism data.By Bastian Herre — August 16, 2023
How do researchers estimate the death toll caused by each risk factor, whether it’s smoking, obesity, or air pollution?Risk factors are important to understand because they can help us identify how to save lives. How do researchers estimate their impact?By Saloni Dattani — August 09, 2023
How are causes of death registered around the world?In many countries, when people die, the cause of their death is officially registered in their country’s national system. How is this determined?By Saloni Dattani — August 09, 2023
Risk ratios, odds ratios, risk differences: How do researchers calculate the risk from a risk factor?The effects of risk factors can be calculated in different ways. How are they calculated and interpreted?By Saloni Dattani — August 09, 2023
Why isn’t it possible to sum up the death toll from different risk factors?Deaths caused by each risk factor can’t be added up. By understanding why, we will have a better understanding of how many lives can be saved with each intervention.By Saloni Dattani — August 09, 2023
We just published a new topic page on food pricesExplore global data on food affordability, and expenditures on food across the world.By Hannah Ritchie, Pablo Rosado and Max Roser — August 01, 2023
The limits of our personal experience and the value of statisticsThe world is huge; to get a clear idea of what our world is like, we have to rely on carefully collected, well documented statistics.By Max Roser — July 27, 2023
We published a new topic page on tourismExplore data on how tourism has changed over time, and how it differs across the world.By Bastian Herre and Veronika Samborska — July 26, 2023
We published a new topic page on homicidesExplore data on homicides rates across the world, and how these have changed over time.By Bastian Herre and Fiona Spooner — July 20, 2023