Americans have a lower life expectancy than people in other rich countries despite paying much more for healthcare. We explore the number of factors which might explain this difference.

Aviation accounts for 2.5% of global CO₂ emissions. How much from short vs. long-haul flights? How much from rich vs. poor countries?

Flying is a highly controversial topic in climate debates. It accounts for around 2.5% of global CO₂ emissions, but 3.5% when we take non-CO₂ impacts on climate into account.

For individuals, transport can be the largest part of their carbon footprint. If you need to travel, what is the lowest-carbon way to do so?

The Our World in Data dataset which has tracked COVID-19 testing across the world since the start of the pandemic has been peer-reviewed and published in the academic journal, Nature.

Transport accounts for around one-fifth of global CO₂ emissions. But where do these emissions come from, and how might they change in the coming decades?

Millions of people use Our World in Data every month. We looked at survey responses to understand who uses our work, and what for.

We teamed up with the YouTube channel, Kurzgesagt to make a video about climate change: its drivers and possible solutions.

It’s often argued that life expectancy across the world has only increased because child mortality has fallen. But this untrue. The data shows that life expectancy has increased at all ages.

Globally, we emit around 50 billion tonnes of greenhouse gases each year. Where do these emissions come from? We take a look, sector-by-sector.

To help us improve Our World in Data, we have launched an audience survey to understand your needs.

830 women die from pregnancy-related causes on any given day. Most of these deaths are preventable. How can we use the Exemplar framework to identify which countries have been most successful in doing so?

For most of our history we were losing terribly against the microbes. Only recently did we turn the battle in our favour. Vaccines were a major breakthrough, as the data shows. Now in the fight against the coronavirus too, our biggest hope is to find an effective vaccine.

Vietnam is one country which has responded well to the Coronavirus pandemic. How did they do so? In-country experts provide key insights.

South Korea is one country which has responded well to the Coronavirus pandemic. How did they do so? In-country experts provide key insights.

Germany is one country which has responded well to the Coronavirus pandemic. How did they do so? In-country experts provide key insights.