We published a redesign of our work on the Ozone LayerWe published a redesign of our work on the ozone layer. Explore all of our writing and charts in one place.By Hannah Ritchie and Lucas Rodés-Guirao — March 13, 2023
Our World in Data will rely on data from the WHO to track confirmed COVID-19 cases and deathsJohns Hopkins University will stop publishing data on confirmed COVID-19 cases and deaths. Our team will replace our entire time series with WHO's data on 8 March 2023.By Edouard Mathieu and Lucas Rodés-Guirao — February 28, 2023
How we choose which topics to work on, and which metrics to provideOn Our World in Data, we present thousands of metrics on hundreds of topics. How do we choose them?By Bastian Herre — February 27, 2023
We just redesigned our work on Waste ManagementExplore data visualizations on waste management.By Hannah Ritchie and Edouard Mathieu — February 23, 2023
We published a redesign of our work on the Environmental Impacts of FoodWe published a major redesign of our work on the Environmental Impacts of Food. Explore all of our data and research in one place.By Hannah Ritchie and Pablo Rosado — February 23, 2023
Technology over the long run: zoom out to see how dramatically the world can change within a lifetimeIt is easy to underestimate the magnitude of this change. Understanding this can help us see how different the world could be in the future.By Max Roser — February 22, 2023
What does it mean for a species to be at risk of extinction?We need to focus on the most threatened species to protect them from extinction. But what does it mean for a species to be at risk, and how is it measured?By Hannah Ritchie — February 20, 2023
We published a redesign of our work on Light at NightOn this page, you can find data, visualizations, and writing about changes in efficiency, price, and access to lighting.By Max Roser and Hannah Ritchie — February 10, 2023
AI timelines: What do experts in artificial intelligence expect for the future?Many believe there is a real chance that human-level AI will be developed within the next decades, and some believe that it will exist much sooner.By Max Roser — February 07, 2023
We published a redesign of our work on DemocracyWe published a major redesign of our work on Democracy. Explore all our data and research in one place.By Bastian Herre — January 26, 2023
We published a redesign of our work on Food PricesOn this page, you can find data, visualizations, and writing on global and country-level food prices and expenditures, the affordability of food, and how this has changed over time.By Max Roser and Hannah Ritchie — January 19, 2023
Engel's Law: Richer people spend more money on food, but it makes up a smaller share of their incomeHow does spending on food change as incomes rise?By Hannah Ritchie — January 19, 2023
We redesigned our work on Military Personnel and SpendingExplore global data and visualizations on military personnel and spending on this page.By Max Roser, Esteban Ortiz-Ospina, Hannah Ritchie, Edouard Mathieu and Bastian Herre — January 13, 2023
We just published a redesign of our work on TourismTourism has massively increased in recent decades. Explore data and visualizations on the history and current state of tourism across the world on this page.By Bastian Herre, Veronika Samborska and Max Roser — January 09, 2023
How many people die and how many are born each year?Changes in the world population are determined by two metrics: the number of babies born and the number of people dying.By Hannah Ritchie and Edouard Mathieu — January 05, 2023
We just published a redesign of our work on Agricultural ProductionAgricultural production is not only fundamental to improving nutrition, but is also the main source of income for many. Explore data and visualizations relating to the topic on this page.By Hannah Ritchie, Pablo Rosado and Max Roser — January 04, 2023
We just published a redesign of our work on BooksBooks and written communication have played a crucial role in the spread of ideas and the development of culture. Explore historical data on manuscript and book production.By Max Roser and Hannah Ritchie — January 04, 2023
We just published a redesign of our work on BiodiversityWe just published a major redesign of our work on Biodiversity. Explore all our data and research in one place.By Hannah Ritchie and Fiona Spooner — December 20, 2022
Wild mammals make up only a few percent of the world’s mammalsLivestock make up 62% of the world’s mammal biomass; humans account for 34%; and wild mammals are just 4%.By Hannah Ritchie — December 15, 2022
Artificial intelligence is transforming our world — it is on all of us to make sure that it goes wellHow AI gets built is currently decided by a small group of technologists. It should be in all of our interest to become informed and engaged.By Max Roser — December 15, 2022
The brief history of artificial intelligence: the world has changed fast — what might be next?Little is as important for the world’s future and our own lives as how this history continues.By Max Roser — December 06, 2022