There are two ways that COVID-19 deaths can be presented over time: by the date of death, or the date on which the death is reported. The data for Sweden is shown by date of death – this means the most recent points should be treated as incomplete.

Globally, aviation accounts for around 2.5% of CO₂ emissions. But for many, it accounts for a much larger share.

40% of eligible voters in the US did not vote in the 2016 election. Young Americans in particular often do not exercise their right to vote – less than half of eligible under-30s voted in the last election.

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. Where do these emissions come from?

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. Three-quarters of this comes 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.

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?

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 favour. 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.