Research suggests that many children — especially in the world’s poorest countries — learn only very little in school. What can we do to improve this?

As of 23 June 2022, we will no longer add new data points to our COVID-19 testing dataset. We will continue updates of all other metrics in our COVID-19 dataset.

The world produces more food than ever, but the amount of land we use is now falling. This means we can feed more people while restoring wild habitat.

Depression is one of the world’s most common health conditions. It's estimated that one-in-three women and one-in-five men have an episode of major depression by the age of 65.

Most people still eat some meat, but surveys suggest that many are adopting a diet with less animal products.

Humans hunted many of the world’s large mammals to extinction. This threat still exists today, but it doesn’t have to be that way.

Why has humanity destroyed such vast forests? And how can we bring this to an end?

People are being diagnosed with depression at an earlier age than in the past because of increased openness to mental health disorders and improved diagnostic guidelines.

Agricultural productivity across Sub-Saharan Africa needs to improve to reduce hunger, poverty, and the destruction of biodiversity.

Both Ukraine and Russia are some of the world’s largest food exporters. How could global food be impacted?

We do not have to live in a world where 1,320 children die from a preventable disease every day.

For energy security and progress on climate change we need open data on energy. The funders of the IEA can make this happen.

If we manage to avoid a large catastrophe, we are living at the early beginnings of human history.

Where does our migration data come from? How are these metrics defined?

The consequences of nuclear war would be devastating. Much more should – and can – be done to reduce the risk that humanity will ever fight such a war

How do we produce long-term datasets on agricultural employment?

Randomized controlled trials are a key tool to study cause and effect. Why do they matter and how do they work?

How do we construct our global data on CO₂ emissions?

Common questions on data on the environmental footprint of foods

Childhood wasting is an important indicator of malnutrition. What is it, and how is it measured?

Stunting is an important marker of childhood malnutrition. But what is it, and how is it measured?