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 Scientific Data.

Transport accounts for around one-fifth of global CO₂ emissions. Three-quarters of this is from road transport.

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

A video about the drivers and possible solutions to climate change.

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

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

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?

We know that confirmed COVID-19 cases are only a fraction of true infections. How small a fraction though?

For most of our history, we were losing terribly against the microbes. Only recently did we turn the battle in our favor. Vaccines were a major breakthrough.

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.

How can we identify which countries have responded well to the Coronavirus pandemic? We look at the key metrics that help us identify success stories.

Excess mortality has become a key metric to understand the true impact of the COVID-19 pandemic. How is excess mortality measured; and what can we learn from cross-country comparisons?

A video about the contributors to climate change, and how countries can work together.

Not all countries report their data in a helpful way. To help official providers of testing data, we set out some simple recommendations based the best reporting practices across the countries included in our testing dataset.

Data tracking public mobility trends over the pandemic

Explore all of our data on COVID-19 vaccinations, cases, excess mortality, and much more.