What is someone’s risk of developing depression, anxiety, or other mental health issues at some point in their life?<br><br><a href="https://ourworldindata.org/around-half-of-people-will-experience-a-mental-health-issue-in-their-lifetime"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0d537924-4a43-4750-5509-6f50163e3c00/w=1024"/></a>

Around one-fifth of development aid is spent on climate-related projects. But what does climate-related mean, and does it crowd out other aid projects?<br><br><a href="https://ourworldindata.org/how-much-development-aid-is-spent-on-climate-change"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/59464533-c5ca-4a7e-7686-358fc7608500/w=1024"/></a>

Knowing when people are most at risk allows us to offer support when it might make the biggest difference.<br><br><a href="https://ourworldindata.org/when-do-people-experience-mental-health-conditions-for-the-first-time"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/f5a4f0de-6f66-4b12-26b1-55d91ef60c00/w=1024"/></a>

A guide to understanding the Living Planet Index and what it does and doesn’t mean.<br><br><a href="https://ourworldindata.org/2026-lpi-update"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/d040574f-0ac6-4478-620a-8c0681700500/w=1024"/></a>

More than 600,000 people die from malaria every year. Will climate change make this worse?<br><br><a href="https://ourworldindata.org/what-impact-will-climate-change-have-on-malaria"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/c2d97915-f84d-4efa-3918-5a9c2a5d2400/w=1024"/></a>

We use long-run census data to understand the scale of recent US migration trends, and how these compare to previous centuries.<br><br><a href="https://ourworldindata.org/how-high-is-current-immigration-to-the-united-states-in-historical-perspective"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/62f7240d-9892-4f63-792f-233662d7e800/w=1024"/></a>

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.<br><br><a href="https://ourworldindata.org/is-organic-farming-better-for-the-environment-than-conventional-farming"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/c34a94e0-2051-436f-6d7b-7248cb28fa00/w=1024"/></a>

How often do people in high-burden areas get malaria? Studies suggest that many children can experience five or more malaria infections a year.<br><br><a href="https://ourworldindata.org/a-never-ending-childhood-of-malaria"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0abc7616-42a5-4338-94a1-6282c3991000/w=1024"/></a>

Most beef production in Brazil is to meet domestic rather than international demand.<br><br><a href="https://ourworldindata.org/beef-production-in-brazil-has-been-the-largest-driver-of-global-deforestation-in-recent-decades"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/31b278f8-6814-47ba-54ac-73914f6aff00/w=1024"/></a>

How elections spread, voting rights expanded, and political competition developed around the world over the last two centuries.<br><br><a href="https://ourworldindata.org/the-rise-of-electoral-democracy"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/8bb8ce32-4bbc-487c-e8bf-4ca148339a00/w=1024"/></a>

Falling fertility rates have created a unique scenario in human history: many countries are experiencing structural population decline.<br><br><a href="https://ourworldindata.org/which-countries-have-already-passed-peak-population-and-when-will-the-rest-do-so"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0da09f22-48af-466e-88fa-22780080b500/w=1024"/></a>

According to a UN report published last year, there are 138 million children in child labor. In this article, we look at what this estimate exactly captures.<br><br><a href="https://ourworldindata.org/138-million-children-are-in-child-labor-what-does-this-actually-mean"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/564b02f9-4455-4334-12ce-94a4583fde00/w=1024"/></a>

The Energy Institute no longer uses the substitution method to estimate primary energy. Here’s why that matters for our charts on energy.<br><br><a href="https://ourworldindata.org/primary-energy-measurement-change"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/9a8b8dbc-314b-4366-f601-386556664700/w=1024"/></a>

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.<br><br><a href="https://ourworldindata.org/what-has-driven-deforestation-in-the-21st-century"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/b63c446f-e9a8-4eca-b979-4e1eafb5a500/w=1024"/></a>

Learn how inequality is measured, who produces key databases, and what the data tells us.<br><br><a href="https://ourworldindata.org/we-published-a-new-topic-page-on-economic-inequality"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/8572fbf8-1c9c-4176-a865-12735e86a000/w=1024"/></a>

Data centers consume around 1.5% of global electricity, but demand is very geographically concentrated.<br><br><a href="https://ourworldindata.org/how-much-energy-do-data-centers-and-artificial-intelligence-use"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/1bda728d-dc32-4ca7-32f8-dcb5be9a4b00/w=1024"/></a>

Explore how populations are distributed across settlement types, which cities are growing fastest, what living conditions in urban areas look like, and much more.<br><br><a href="https://ourworldindata.org/we-have-a-new-urbanization-topic-page"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/a57ed482-5955-4a15-01c2-fc5092c4ac00/w=1024"/></a>

Our interactive tool helps you see where food is exported from and where it goes.<br><br><a href="https://ourworldindata.org/how-does-food-get-traded-around-the-world"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/65dfb98e-8a6d-4318-59cd-d71a642a1000/w=1024"/></a>

Around 30% of the world’s emissions have some carbon price, but how much extra are people paying?<br><br><a href="https://ourworldindata.org/how-much-are-people-across-the-world-paying-for-their-carbon-emissions"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0ea1f35f-dea2-4a58-61cb-bceb18a06900/w=1024"/></a>

An interactive tool that helps us see where migrants were born, and where they live now.<br><br><a href="https://ourworldindata.org/where-do-migrants-live-and-where-were-they-born"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/4ef2a38d-e4fd-46c0-0f52-d8e5c7646d00/w=1024"/></a>