Suicide rates can be reduced with greater understanding and support for people at risk.

The available resources have increased substantially. We should expect that the field continues to advance rapidly.

Exponential growth is at the heart of the rapid increase of computing capabilities.

Global population has increased rapidly over the past century. This period of rapid growth is temporary: the world is entering a new equilibrium and rapid population growth is coming to an end.

Over the last 50 years, holes in the ozone layer have opened up. Why does that matter for life on Earth?

Johns Hopkins University will stop publishing data on confirmed COVID-19 cases and deaths. Our team will replace our entire time series with WHO's data on 8 March 2023.

On Our World in Data, we present thousands of metrics on hundreds of topics. How do we choose them?

It is easy to underestimate the magnitude of this change. Understanding this can help us see how different the world could be in the future.

We need to focus on the most threatened species to protect them from extinction. But what does it mean for a species to be at risk, and how is it measured?

Many believe there is a real chance that human-level AI will be developed within the next decades, and some believe that it will exist much sooner.

How does spending on food change as incomes rise?

Changes in the world population are determined by two metrics: the number of babies born and the number of people dying.

Livestock make up 62% of the world’s mammal biomass; humans account for 34%; and wild mammals are just 4%.

How AI gets built is currently decided by a small group of technologists. It should be in all of our interest to become informed and engaged.

Little is as important for the world’s future and our own lives as how this history continues.

When did the "Big Five" mass extinctions happen, and what were their causes?

How many species do we share our planet with? How many of these species have we found and identified?

10,000 to 50,000 years ago, hundreds of the largest mammals went extinct. It's likely that humans were the key driver of this.

Intense whaling drove many of the world’s whale species close to extinction. But a dramatic decline in whale hunting since then has given them hopes of recovery.

How have rhino populations changed over time? What species are at risk of extinction today?

The World Bank has updated the methods it uses to measure incomes and poverty around the world. What does this mean for our understanding of global poverty?