In the 1980s, many thought tuberculosis was on the path to elimination. In reality, more were dying from the disease than ever.<br><br><a href="https://ourworldindata.org/the-end-of-tuberculosis-that-wasnt" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/b5aa8c82-2fc4-4e0a-cdf1-82d5aa6f9800/w=1350"/></a>

For billions, it can mean hours spent collecting water. For almost a million, it means dying from disease.<br><br><a href="https://ourworldindata.org/what-no-safe-water-means" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/59c8ad10-ac08-4179-3186-1b2bac060c00/w=1350"/></a>

As much as one-quarter of deaths in Europe and the United States were once from tuberculosis.<br><br><a href="https://ourworldindata.org/tuberculosis-history-decline" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/21b69f06-f8eb-4618-a3ed-401b8af6d300/w=1350"/></a>

It’s difficult to compare countries because they don’t always measure infant mortality in the same way.<br><br><a href="https://ourworldindata.org/where-are-babies-at-lowest-risk-of-dying" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/39d23685-afc7-46b8-2018-8813c041c100/w=1350"/></a>

In most rich countries, child mortality has more than halved in the last thirty years; we know we can go further.<br><br><a href="https://ourworldindata.org/child-mortality-rich-countries-decline" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0f13d2cd-7f47-4f84-22a3-b1014dd1e500/w=1350"/></a>

A breakdown of the sources of many air pollutants that damage our health and ecosystems.<br><br><a href="https://ourworldindata.org/air-pollution-sources" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/5a98a347-7411-40c8-4c1b-30a542d22f00/w=1350"/></a>

In many countries, a significant share of aid is spent domestically on hosting refugees, offering student scholarships, and administrative costs.<br><br><a href="https://ourworldindata.org/foreign-aid-domestic-overseas" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/78a7ce1c-2086-4716-c5dc-30f130bbee00/w=1350"/></a>

Most countries spend less than 1% of their national income on foreign aid; even small increases could make a big difference.<br><br><a href="https://ourworldindata.org/foreign-aid-donations-increase" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/486658e7-cc1e-4bed-f5a7-4c66b7ced500/w=1350"/></a>

The world is warming despite natural fluctuations from the El Niño cycle.<br><br><a href="https://ourworldindata.org/global-temperatures-el-nino-la-nina" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/40c0d7fb-f503-45b1-8eda-8cc001f4dd00/w=1350"/></a>

Air pollution tends to get worse before it gets better, but how can we accelerate this transition?<br><br><a href="https://ourworldindata.org/cleanest-air-lessons" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/2634177d-6b60-4df5-3152-c38263399f00/w=1350"/></a>

Maternal mortality was much more common in the past. It is much lower today, but global inequalities are still large.<br><br><a href="https://ourworldindata.org/maternal-deaths-save-mothers" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/1a2ccaa1-7f25-4250-6151-acd5affb0400/w=1350"/></a>

Estimates range from less than $1 trillion to $7 trillion. Where do these numbers come from?<br><br><a href="https://ourworldindata.org/how-much-subsidies-fossil-fuels" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/58092c37-e5b8-42af-8d79-60234c162400/w=1350"/></a>

In the 1980s, economist Julian Simon won his bet with biologist Paul Ehrlich on mineral prices. But what does the long-term data tell us about supply and demand for resources?<br><br><a href="https://ourworldindata.org/simon-ehrlich-bet" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0ca9751d-f29d-46bb-8e3f-31eaf6087d00/w=1350"/></a>

Antibiotics revolutionized medicine, but their effectiveness is threatened by resistance. This new page presents global data and research on antibiotics and antibiotic resistance.<br><br><a href="https://ourworldindata.org/antibiotics" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0983df2b-3d7f-416f-71be-f4ad93a8a100/w=1350"/></a>

Many countries refuse to share their data, which is a risk for antimicrobial resistance.<br><br><a href="https://ourworldindata.org/antibiotics-livestock-data" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/f76ef941-7b32-4c9f-4fcf-c6a07067ff00/w=1350"/></a>

Overuse is a risk for antibiotic resistance, but there are ways to reduce it.<br><br><a href="https://ourworldindata.org/antibiotics-livestock" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/f40ec941-5824-4d88-c91d-6012bd888e00/w=1350"/></a>

Many countries refuse to share their data, which is a risk for antimicrobial resistance.<br><br><a href="https://ourworldindata.org/public-data-antibiotic-use-livestock-incomplete" target="_blank"><img src="https://ourworldindata.org/images/published/livestock-antibiotics-data-thumbnail.png"/></a>

In some countries, most children and pregnant women are anemic. There are low-cost ways to tackle this.<br><br><a href="https://ourworldindata.org/billions-people-suffer-anemia-cheap-ways-reduce" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/90ee4eca-4e37-483d-f622-966a7db3fc00/w=1350"/></a>

Adapting planting dates, selecting better crop varieties, and increasing access to irrigation and fertilizers could offset potential declines in crop yields.<br><br><a href="https://ourworldindata.org/climate-change-will-affect-food-production-things-can-adapt" target="_blank"><img src="https://ourworldindata.org/images/published/climate-agriculture-adaptation-featured.png"/></a>

Maize yields could see significant declines, but wheat could increase. Impacts across the world will be very different.<br><br><a href="https://ourworldindata.org/will-climate-change-affect-crop-yields-future" target="_blank"><img src="https://ourworldindata.org/images/published/climate-agriculture-featured-2.png"/></a>