Latest

How many people support vaccination across the world?

Here we look at results from the largest global survey to date on attitudes to vaccination across the world.

Hannah Ritchie and Samantha Vanderslott

Vaccine skepticism and what to do about it

What effect do public attitudes have on vaccine coverage rates, and what can we do about skepticism toward vaccines?

Samantha Vanderslott

More than 8 out of 10 people in the world will live in Asia or Africa by 2100

Most of the world’s population growth over the next century is expected to come from Africa.

Hannah Ritchie

Data appendix – The fight against global poverty: 200 years of progress and still a very long way to go

An online data appendix explaining the data and methods used to estimate the historical poverty trends presented in Roser and Hasell (2021)

Joe Hasell

How I use Our World in Data in my work as a high school teacher

Many lecturers and teachers use Our World in Data in their teaching. This spans a range of levels from primary school to post-graduate university education. Matthew Cone, a US high-school teacher, shares how he uses OWID with his pupils.

Matthew Cone (guest author)

How I use Our World in Data in my work as a medical doctor

Our World in Data gets lots of feedback on how our work is used by policymakers, journalists, researchers and the public. But sometimes we get feedback from people who use us in ways we could never have imagined.

Dr. Jill Gordon (guest author)

Which countries achieved economic growth? And why does it matter?

Some countries have grown a lot, while others remained poor. We look at how incomes have changed around the world and why it matters.

Max Roser

Does democracy lead to better health?

There is a cross-country correlation between democracy and health. Is there good evidence to suggest it is causal?

Esteban Ortiz-Ospina

Oceans, land, and deep subsurface: how is life distributed across environments?

Where do we find life on earth? Despite being vast, the oceans are home to just 1% of life – but the majority of animals. See how the different lifeforms are split across these global environments.

Hannah Ritchie

Malaria was common across half the world – since then it has been eliminated in many regions

Malaria has been eliminated from large parts of Europe, the Americas, East Asia, Australia, and the Caribbean.

Max Roser

Humans make up just 0.01% of Earth's life — what's the rest?

How is life on Earth distributed across the taxonomic kingdoms? Humans make up just 0.01% of life: but we've had much larger impacts on shaping the animal kingdom. Livestock now outweighs wild mammals and birds ten-fold.

Hannah Ritchie

Child mortality: achieving the global goal for 2030 would be a huge achievement – but we are currently far away

15,000 children die on average every single day. Reducing child mortality is a key target of the Sustainable Development Goals (SDGs). What would it take for the world to reach it?

Max Roser

The global population pyramid: How global demography has changed and what we can expect for the 21st century

Global demographic transition signals a shift from young, growing populations to older, stable ones, reshaping societies and economies.

Max Roser

How do we know the history of extreme poverty?

To estimate historical global poverty, researchers can analyze economic data and reconstruct national accounts to understand income levels and inequality in the past.

Joe Hasell and Max Roser

The death of UK coal in five charts

Coal is almost dead in the place where it all began

Hannah Ritchie

Our World in Data is at Y Combinator

We are one of the few non-profits that Y Combinator has decided to accept.

Max Roser, Hannah Ritchie, Esteban Ortiz-Ospina, Jaiden Mispy, Joe Hasell, and Daniel Gavrilov

India's population growth will come to an end: the number of children has already peaked

The number of children in India peaked in the first decade of the 2000s.

Hannah Ritchie

Is income inequality rising around the world?

Whether inequality is rising or falling depends on where, when, and what aspect of inequality we have in mind.

Joe Hasell

We've updated our topic page on Trade and Globalization

Esteban Ortiz-Ospina

How child mortality has declined in the last two centuries

How has child mortality declined worldwide across the last two centuries?

Hannah Ritchie

Is trade a major driver of income inequality?

Esteban Ortiz-Ospina