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<!-- End Google Tag Manager --></head><body class="blog"><header class="site-header"><div class="wrapper site-navigation-bar"><div class="site-logo"><a href="/">Our World<br/> in Data</a></div><nav class="site-navigation"><div class="topics-button-wrapper"><a href="/#entries" class="topics-button"><div class="label">Articles <br/><strong>by topic</strong></div><div class="icon"><svg width="12" height="6"><path d="M0,0 L12,0 L6,6 Z" fill="currentColor"></path></svg></div></a></div><div><div class="site-primary-navigation"><form class="HeaderSearch" action="/search" method="GET"><input type="search" name="q" placeholder="Search..."/><div class="icon"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="magnifying-glass" class="svg-inline--fa fa-magnifying-glass " role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M416 208c0 45.9-14.9 88.3-40 122.7L502.6 457.4c12.5 12.5 12.5 32.8 0 45.3s-32.8 12.5-45.3 0L330.7 376c-34.4 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32-32H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32c-17.7 0-32-14.3-32-32zM448 416c0 17.7-14.3 32-32 32H32c-17.7 0-32-14.3-32-32s14.3-32 32-32H416c17.7 0 32 14.3 32 32z"></path></svg></button></div></div></header><div class="alert-banner"><div class="content"><div class="text"><strong>COVID-19 vaccinations, cases, excess mortality, and much more</strong></div><a href="/coronavirus#explore-the-global-situation" data-track-note="covid-banner-click">Explore our COVID-19 data</a></div></div><main class="wrapper"><div class="site-content"><h2>Our latest work</h2><ul class="posts"><li class="post"><article class="post-card"><a href="/brief-history-of-ai"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/12/featured-image-ai-training-computation-768x440.png)"></div><div class="content"><div><h3>The brief history of artificial intelligence: The world has changed fast – what might be next?</h3><div class="excerpt">Despite their brief history, computers and AI have fundamentally changed what we see, what we know, and what we do. Little is as important for the future of the world, and our own lives, as how this history continues.</div></div><div class="entry-meta"><span class="authors">By Max Roser</span> — <time>December 06, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/artificial-intelligence-launch"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/11/artificial-intelligence-featured-image-768x403.png)"></div><div class="content"><div><h3>We just published a new topic page on Artificial Intelligence</h3><div class="excerpt">AI is already having a large impact on our world. Explore research and data to understand the trajectory of this important technology.</div></div><div class="entry-meta"><span class="authors">By Charlie Giattino, Edouard Mathieu, Julia Broden and Max Roser</span> — <time>December 06, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/redesign-environmental-impacts-food"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/11/Environmental-Impacts-of-Food-Production-Thumbnail-768x403.png)"></div><div class="content"><div><h3>We just published a redesign of our work on the Environmental Impacts of Food</h3><div class="excerpt">We’ve just published a major redesign of our work on the Environmental Impacts of Food. Explore all of our data and research in one place.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>December 02, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/co2-data-update-2022"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2020/08/CO2-Landing-page-768x402.png)"></div><div class="content"><div><h3>Data update: We’ve just updated all of our global CO₂ emissions data</h3><div class="excerpt">We’ve just updated CO₂ emissions data for all countries in the world, including new metrics on emissions from land use change.</div></div><div class="entry-meta"><span class="authors">By Pablo Rosado, Hannah Ritchie and Edouard Mathieu</span> — <time>November 11, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/global-health-explorer-launch"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Global-Health-Explorer-768x403.png)"></div><div class="content"><div><h3>We just published a data explorer on Global Health</h3><div class="excerpt">What do people die from? How do health outcomes and systems vary across the world? Explore data for all countries in our data explorer.</div></div><div class="entry-meta"><span class="authors">By Fiona Spooner, Edouard Mathieu and Hannah Ritchie</span> — <time>November 02, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/from-1-90-to-2-15-a-day-the-updated-international-poverty-line"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Poverty-line-thumbnail-768x402.png)"></div><div class="content"><div><h3>From $1.90 to $2.15 a day: the updated International Poverty Line</h3><div class="excerpt">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?</div></div><div class="entry-meta"><span class="authors">By Joe Hasell</span> — <time>October 26, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/influenza-deaths"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Flu-deaths-thumbnail-768x303.png)"></div><div class="content"><div><h3>How many people die from the flu?</h3><div class="excerpt">The risk of death from influenza has declined over time, but globally, hundreds of thousands of people still die from the disease each year.</div></div><div class="entry-meta"><span class="authors">By Saloni Dattani and Fiona Spooner</span> — <time>October 20, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/owid-entry-redesign"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/new-design-1-768x402.png)"></div><div class="content"><div><h3>Introducing our updated work on Poverty: a new design for our content</h3><div class="excerpt">We’ve just published a major redesign of our topic pages. Explore this redesign with our new work on poverty.</div></div><div class="entry-meta"><span class="authors">By Joe Hasell and Matthew Conlen</span> — <time>October 18, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/poverty-explorer-launch"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/chart-768x402.png)"></div><div class="content"><div><h3>We just published our new data explorer on Poverty</h3><div class="excerpt">Explore data on poverty across the world, and how this is changing over time.</div></div><div class="entry-meta"><span class="authors">By Joe Hasell and Pablo Arriagada</span> — <time>October 18, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/carbon-pricing"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Carbon-taxes-featured-image-768x402.png)"></div><div class="content"><div><h3>Which countries have put a price on carbon?</h3><div class="excerpt">Putting a price on carbon helps us account for the real costs of fossil fuels in the market. Which countries have a carbon tax or trading system?</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie and Pablo Rosado</span> — <time>October 14, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/living-planet-index-decline"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2021/03/Living-Planet-Index-thumbnail-768x404.png)"></div><div class="content"><div><h3>Living Planet Index: what does an average decline of 69% really mean?</h3><div class="excerpt">The Living Planet Index is the biodiversity metric that always claims the headlines. It’s often misinterpreted. How should we understand it?</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>October 13, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/plastic-waste-trade"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Plastic-waste-trade-featured-image-768x402.png)"></div><div class="content"><div><h3>Ocean plastics: How much do rich countries contribute by shipping their waste overseas?</h3><div class="excerpt">Many countries ship plastic waste overseas. How much of the world’s waste is traded, and how big is its role in the pollution of our oceans?</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>October 11, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/plastic-explorer-launch"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/10/Plastic-Waste-Data-Explorer-768x403.png)"></div><div class="content"><div><h3>We just launched our data explorer on Plastic Waste & Trade</h3><div class="excerpt">Which countries produce the most plastic waste, and how is waste traded across the world?</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>October 11, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/europe-mammal-comeback"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/05/European-mammals-thumbnail-768x402.png)"></div><div class="content"><div><h3>Wild mammals are making a comeback in Europe thanks to conservation efforts</h3><div class="excerpt">Hunting and habitat loss drove many large mammals in Europe close to extinction. New data shows us that many of the continent’s mammal populations are flourishing again.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>September 27, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/less-democratic"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/09/less-democratic2-e1662990170102-768x389.png)"></div><div class="content"><div><h3>The world has recently become less democratic</h3><div class="excerpt">Many more people have democratic rights than in the past. Some of this progress has recently been reversed.</div></div><div class="entry-meta"><span class="authors">By Bastian Herre</span> — <time>September 06, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/new-env-food-data-explorer"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/08/Env-Impacts-of-Food-Data-Explorer-768x403.png)"></div><div class="content"><div><h3>We just published a new data explorer on the Environmental Impacts of Food</h3><div class="excerpt">Explore the environmental impacts of hundreds of specific food products.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>August 17, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/launch-air-pollution-explorer"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/08/Air-Pollution-Data-Explorer-768x403.png)"></div><div class="content"><div><h3>We just published our Air Pollution Data Explorer</h3><div class="excerpt">Explore historical and recent emissions of air pollutants across the world.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie</span> — <time>August 11, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/much-better-awful-can-be-better"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2018/10/featured-image-768x387.png)"></div><div class="content"><div><h3>The world is awful. The world is much better. The world can be much better.</h3><div class="excerpt">It is wrong to think that these three statements contradict each other. We need to see that they are all true to see that a better world is possible.</div></div><div class="entry-meta"><span class="authors">By Max Roser</span> — <time>July 20, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/democratic-world"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/07/democratic_world-e1657029841780-768x572.png)"></div><div class="content"><div><h3>People around the world have gained democratic rights, but some have many more rights than others</h3><div class="excerpt">How democratic have countries been across the world? And how big are the differences between them?</div></div><div class="entry-meta"><span class="authors">By Bastian Herre</span> — <time>July 19, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/world-population-update-2022"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/07/Population-2022-768x402.png)"></div><div class="content"><div><h3>Five key findings from the 2022 UN Population Prospects</h3><div class="excerpt">Explore the key highlights from the UN’s latest release of its world population estimates.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie, Edouard Mathieu, Lucas Rodés-Guirao and Marcel Gerber</span> — <time>July 11, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/population-explorer-launch"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/07/Population-Data-Explorer-768x403.png)"></div><div class="content"><div><h3>We just published our new Population and Demography Data Explorer</h3><div class="excerpt">Explore data on population, fertility rates, life expectancy, deaths and other demographic data across the world.</div></div><div class="entry-meta"><span class="authors">By Lucas Rodés-Guirao, Marcel Gerber, Edouard Mathieu and Hannah Ritchie</span> — <time>July 11, 2022</time></div></div></a></article></li></ul><nav class="navigation pagination" role="navigation"><h2 class="screen-reader-text">Posts navigation</h2><div class="nav-link"><a class="page-numbers current" href="/blog/">1</a><a class="page-numbers" href="/blog/page/2">2</a><a class="page-numbers" href="/blog/page/3">3</a><a class="page-numbers" href="/blog/page/4">4</a><a class="page-numbers" href="/blog/page/5">5</a><a class="page-numbers" href="/blog/page/6">6</a><a class="page-numbers" 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