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Research and data to make progress against the world’s largest problems.
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How Britain built some of the world’s safest roads

2025-09-08 12:00:00

The death rate per mile driven has declined 22-fold since 1950.<br><br><a href="https://ourworldindata.org/britain-safest-roads-history" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/9fdccbaa-9640-4113-6d2a-93ab2ce2fa00/w=1350"/></a>

Hannah Ritchie has a new book about tackling climate change coming out on September 18th

2025-09-05 16:00:00

“Clearing the Air” is available for pre-order now.<br><br><a href="https://ourworldindata.org/hannah-ritchie-new-book" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/27999dbd-d329-40fe-1284-0661acb16100/w=1350"/></a>

Bans on highly toxic pesticides could be an effective way to save lives from suicide

2025-09-01 12:00:00

Pesticide poisoning is a common method of suicide in many low- to middle-income countries. Banning highly toxic pesticides and substituting them with less fatal ones can save lives.<br><br><a href="https://ourworldindata.org/pesticide-bans-suicide-prevention" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/d8cbf8af-42ff-4bb4-7704-444383efb400/w=1350"/></a>

Global inequality is huge — but so is the opportunity for people in high-income countries to support poor people

2025-08-25 12:00:00

People in high-income countries could dramatically improve lives worldwide with minimal financial commitment, yet few do.<br><br><a href="https://ourworldindata.org/global-inequality-opportunity-to-give" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/4a07a4c2-8070-489b-cb46-62dc93a64700/w=1350"/></a>

$3 a day: A new poverty line has shifted the World Bank’s data on extreme poverty. What changed, and why?

2025-08-11 12:00:00

In June 2025, the World Bank increased its extreme poverty estimates by 125 million people. This doesn’t mean the world has gotten poorer: it reflects a new, higher International Poverty Line of $3 a day, up from $2.15.<br><br><a href="https://ourworldindata.org/new-international-poverty-line-3-dollars-per-day" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/43f2893b-21b1-42de-1908-2293e2516400/w=1350"/></a>

Death rates from cardiovascular disease have fallen dramatically — what were the breakthroughs behind this?

2025-08-04 12:00:00

Over a century of progress in surgery, drugs, prevention, and emergency response has driven down death rates from heart disease and stroke.<br><br><a href="https://ourworldindata.org/cardiovascular-deaths-decline" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/7ca4974e-8cc8-4b46-a09f-a870c56c1600/w=1350"/></a>