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<!-- End Google Tag Manager --></head><body class="blog"><header class="site-header"><div class="site-navigation-root"><div class="site-navigation"><div class="wrapper"><div class="site-navigation-bar"><div class="SiteNavigationToggle SiteNavigationToggle--mobile-menu hide-sm-up"><button class="SiteNavigationToggle__button"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="bars" class="svg-inline--fa fa-bars " role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M0 96C0 78.3 14.3 64 32 64H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32C14.3 128 0 113.7 0 96zM0 256c0-17.7 14.3-32 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 class="site-logos"><div class="logo-owid"><a href="/">Our World<br/> in Data</a></div><div class="logos-wrapper"><a 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64H64c-35.3 0-64-28.7-64-64v0zM176 160H336c8.8 0 16 7.2 16 16s-7.2 16-16 16H176c-8.8 0-16-7.2-16-16s7.2-16 16-16zm0 64H336c8.8 0 16 7.2 16 16s-7.2 16-16 16H176c-8.8 0-16-7.2-16-16s7.2-16 16-16z"></path></svg></button></div><a href="/donate" class="donate" data-track-note="header-navigation">Donate</a></div></div></div></div></div><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></header><main class="wrapper"><div class="site-content"><h2>Our latest work</h2><ul class="posts"><li class="post"><article class="post-card"><a href="/technology-long-run"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/12/featured-image-Longterm-timeline-of-technology-768x440.png)"></div><div class="content"><div><h3>Technology over the long run: zoom out to see how dramatically the world can change within a lifetime</h3><div class="excerpt">It is easy to underestimate how much the world can change within a lifetime. Bringing to mind how dramatically the world has changed can help us see how different the world could be in a few years or decades.</div></div><div class="entry-meta"><span class="authors">By Max Roser</span> — <time>February 22, 2023</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/ai-timelines"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/12/featured-image-When-do-experts-expect-Artificial-General-Intelligence-768x440.png)"></div><div class="content"><div><h3>AI timelines: What do experts in artificial intelligence expect for the future?</h3><div class="excerpt">Many AI experts believe there is a real chance that human-level artificial intelligence will be developed within the next decades, and some believe that it will exist much sooner.</div></div><div class="entry-meta"><span class="authors">By Max Roser</span> — <time>February 07, 2023</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/democracy-redesign"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2023/01/Thumbnail-Democracy_Blue_01-768x402.png)"></div><div class="content"><div><h3>We published a redesign of our work on Democracy</h3><div class="excerpt">We published a major redesign of our work on Democracy. Explore all our data and research in one place.</div></div><div class="entry-meta"><span class="authors">By Bastian Herre</span> — <time>January 26, 2023</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/births-and-deaths"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2019/09/Screenshot-2022-12-14-at-15.44.40-768x421.png)"></div><div class="content"><div><h3>How many people die and how many are born each year?</h3><div class="excerpt">Changes in the world population are determined by two metrics: the number of babies born, and number of people dying.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie and Edouard Mathieu</span> — <time>January 05, 2023</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/biodiversity-redesign"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2021/03/Biodiversity-thumbnail-768x404.png)"></div><div class="content"><div><h3>We just published a redesign of our work on Biodiversity</h3><div class="excerpt">We just published a major redesign of our work on Biodiversity. Explore all our data and research in one place.</div></div><div class="entry-meta"><span class="authors">By Hannah Ritchie and Fiona Spooner</span> — <time>December 20, 2022</time></div></div></a></article></li><li class="post"><article class="post-card"><a href="/ai-impact"><div class="cover-image" style="background-image:url(https://ourworldindata.org/uploads/2022/12/featured-image-Timeline-of-Transformative-Events-1-768x440.png)"></div><div class="content"><div><h3>Artificial intelligence is transforming our world — it is on all of us to make sure that it goes well</h3><div class="excerpt">How AI gets built is currently decided by a small group of technologists. As this technology is transforming our lives, it should be in all of our interest to become informed and engaged.</div></div><div class="entry-meta"><span class="authors">By Max Roser</span> — <time>December 15, 2022</time></div></div></a></article></li><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 published a redesign of our work on the Environmental Impacts of Food</h3><div class="excerpt">We 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 and Pablo Rosado</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></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" href="/blog/page/7">7</a><a class="page-numbers" href="/blog/page/8">8</a><a class="page-numbers" href="/blog/page/9">9</a><a class="page-numbers" href="/blog/page/10">10</a><a class="page-numbers" href="/blog/page/11">11</a><a class="page-numbers" href="/blog/page/12">12</a><a class="page-numbers" href="/blog/page/13">13</a><a class="page-numbers" href="/blog/page/14">14</a><a class="page-numbers" href="/blog/page/15">15</a><a class="page-numbers" href="/blog/page/16">16</a></div></nav></div></main><section class="donate-footer"><div class="wrapper"><div class="owid-row flex-align-center"><div class="owid-col owid-col--lg-3 owid-padding-bottom--sm-3"><p>Our World in Data is free and accessible for everyone.</p><p>Help us do this work by making a donation.</p></div><div class="owid-col owid-col--lg-1"><a href="/donate" class="owid-button donate-button" data-track-note="donate-footer"><span class="label">Donate now</span><span class="icon"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="angle-right" class="svg-inline--fa fa-angle-right " role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path fill="currentColor" d="M278.6 233.4c12.5 12.5 12.5 32.8 0 45.3l-160 160c-12.5 12.5-32.8 12.5-45.3 0s-12.5-32.8 0-45.3L210.7 256 73.4 118.6c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0l160 160z"></path></svg></span></a></div></div></div></section><footer class="site-footer"><div class="wrapper"><div class="owid-row"><div class="owid-col owid-col--lg-1"><ul><li><a href="/about" data-track-note="footer-navigation">About</a></li><li><a href="/about#contact" data-track-note="footer-navigation">Contact</a></li><li><a href="/feedback" data-track-note="footer-navigation">Feedback</a></li><li><a href="/jobs" data-track-note="footer-navigation">Jobs</a></li><li><a href="/funding" data-track-note="footer-navigation">Funding</a></li><li><a href="/about/how-to-use-our-world-in-data" data-track-note="footer-navigation">How to use</a></li><li><a href="/donate" data-track-note="footer-navigation">Donate</a></li><li><a href="/privacy-policy" data-track-note="footer-navigation">Privacy policy</a></li></ul></div><div class="owid-col owid-col--lg-1"><ul><li><a href="/blog" data-track-note="footer-navigation">Latest work</a></li><li><a href="/charts" data-track-note="footer-navigation">All charts</a></li></ul><ul><li><a href="https://twitter.com/OurWorldInData" data-track-note="footer-navigation">Twitter</a></li><li><a href="https://www.facebook.com/OurWorldinData" data-track-note="footer-navigation">Facebook</a></li><li><a href="https://www.instagram.com/ourworldindata/" data-track-note="footer-navigation">Instagram</a></li><li><a href="https://github.com/owid" data-track-note="footer-navigation">GitHub</a></li><li><a href="/feed" data-track-note="footer-navigation">RSS Feed</a></li></ul></div><div class="owid-col owid-col--lg-1"><div class="logos"><a href="https://www.oxfordmartin.ox.ac.uk/global-development" class="partner-logo" data-track-note="footer-navigation"><img src="https://ourworldindata.org/oms-logo.png" alt="Oxford Martin School logo" loading="lazy"/></a><a href="/owid-at-ycombinator" class="partner-logo" data-track-note="footer-navigation"><img src="https://ourworldindata.org/yc-logo.png" alt="Y Combinator logo" loading="lazy"/></a></div></div><div class="owid-col flex-2"><div class="legal"><p>Licenses: All visualizations, data, and articles produced by Our World in Data are open access under the <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="noopener noreferrer">Creative Commons BY license</a>. 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