Our World in Data

Around one-fifth of development aid is spent on climate-related projects.

Knowing when people are most at risk allows us to offer support when it might make the biggest difference.

A guide to understanding the Living Planet Index and what it does and doesn’t mean.

More than 600,000 people die from malaria every year.

We use long-run census data to understand the scale of recent US migration trends, and how these compare to previous centuries.

Organic farming often wins when we compare impacts on one unit of land, but there is no clear winner when we look at impacts per unit of food production.

How often do people in high-burden areas get malaria?

Most beef production in Brazil is to meet domestic rather than international demand.

How elections spread, voting rights expanded, and political competition developed around the world over the last two centuries.

Falling fertility rates have created a unique scenario in human history: many countries are experiencing structural population decline.

According to a UN report published last year, there are 138 million children in child labor.

The Energy Institute no longer uses the substitution method to estimate primary energy.

Agriculture has been the main driver of deforestation, but this has been concentrated in only a few commodities: mostly beef, palm oil, soy, and forestry products.

Learn how inequality is measured, who produces key databases, and what the data tells us.

Data centers consume around 1.5% of global electricity, but demand is very geographically concentrated.