Fact-checked by Grok 2 weeks ago

Our World in Data

Our World in Data is a non-profit platform founded by economist Max Roser that aggregates, analyzes, and visualizes empirical data on global trends in development, health, environment, and technology to demonstrate measurable human progress and support evidence-based policymaking.^[1] It operates as a collaborative project between researchers at the University of Oxford's Oxford Martin Programme on Global Development and the Global Change Data Lab, a UK-registered charity, drawing on datasets from thousands of academic and institutional sources worldwide.^[1]^[2] The organization's core approach emphasizes long-term historical perspectives through interactive charts and articles, revealing declines in extreme poverty from over 90% of the global population in 1820 to under 10% today, alongside rises in life expectancy from around 30 years to over 70 years in the same period.^[3]^[4] These visualizations counter short-term media narratives by prioritizing causal factors like technological innovation and institutional reforms in explaining improvements in literacy, vaccination coverage, and child mortality rates.^[5] OWID gained prominence during the COVID-19 pandemic for compiling official government data on infections, vaccinations, and excess mortality into accessible tools used by millions, underscoring its role in rapid empirical synthesis amid crises.^[6] While praised for open-access dissemination under permissive licenses and reliance on peer-reviewed sources, OWID has faced critique from some environmental advocates for its optimism regarding decoupling economic growth from resource use, potentially overlooking biophysical constraints despite data showing absolute declines in some pollution metrics in high-income countries.^[7] Nonetheless, its methodology favors verifiable metrics over anecdotal evidence, maintaining independence through diverse grant funding without corporate or governmental editorial control.^[7]

Origins and Development

Founding by Max Roser

Max Roser initiated Our World in Data in 2011 while employed in Brazil, originally conceiving it as a book compiling data and research on global development challenges.^[8] As an economist with a focus on social and economic history, Roser drew from his academic training at the University of Innsbruck and key influences like Amartya Sen's analyses of human development to highlight empirical evidence of long-term improvements in living conditions, countering prevalent narratives of global stagnation or regression.^[8] His motivation centered on disseminating accessible, evidence-based insights into human progress, addressing the gap where positive trends in areas such as poverty reduction and health advancements were undercommunicated relative to negative events.^[8] By 2012, Roser had relocated to the University of Oxford, collaborating with economist Sir Tony Atkinson on inequality research, which prompted a shift from book format to an online blog and website to enable interactive data visualization and broader reach.^[8] Self-taught in web technologies amid limited resources, Roser developed a password-protected prototype version by summer 2013, iterating on the project's name—"Our World in Data"—to encapsulate its empirical, world-focused approach after evaluating alternatives.^[8] The publication launched publicly in May 2014 as a free online resource, initially hosted under the Oxford Martin School's Institute for New Economic Thinking program on global development, where Roser served as a researcher.^[8] ^[9] Early momentum included a December 2014 grant of £75,883 from the Nuffield Foundation, which supported expansion while maintaining open access to data-driven articles and charts on topics like population growth, health, and economic inequality.^[8] This foundational phase established the project's commitment to rigorous, sourced data aggregation and transparent visualization, prioritizing long-run perspectives over short-term fluctuations.^[8]

Early Projects and Oxford Affiliation

Our World in Data began as a personal initiative by Max Roser in 2011, while he worked as a researcher in Brazil, initially compiling research notes and data intended for a book on long-run economic development and global challenges such as poverty and health improvements.^[8] The inaugural project examined the causes of famines, resulting in a novel dataset tracking global famine occurrences over the previous 150 years, which highlighted empirical patterns in food security disruptions linked to conflict, policy failures, and environmental factors rather than inherent scarcity.^[8] This effort expanded to aggregating thousands of datasets on metrics like population growth, literacy rates, and mortality declines, with early visualizations emphasizing long-term progress against prevailing pessimistic narratives.^[8] Roser shifted the project's format from a book to an online platform following discussions with economist Tony Atkinson in 2012, after relocating to Oxford to collaborate on inequality studies using historical income distribution data.^[8] In early 2013, as a postdoctoral researcher in Oxford's Department of Economics, he launched a password-protected beta website in the summer, featuring initial interactive charts on topics including energy access and education attainment; it garnered 202 visitors in its first year, primarily from academic networks.^[8] These prototypes laid the groundwork for scalable data presentation, prioritizing verifiable sources like national statistics and historical records over anecdotal evidence. The Oxford affiliation originated with Roser's 2012 move and 2013 hiring, fostering ties to the Institute for New Economic Thinking (INET) at Oxford, which supported the project's empirical focus on economic history.^[10] By formalizing connections to university resources, including access to economic datasets, this positioned Our World in Data within an academic environment conducive to rigorous verification.^[8] Later, the research team integrated with the Oxford Martin Programme on Global Development, an interdisciplinary effort analyzing poverty, climate, and health through data-driven causal assessments, enhancing credibility via peer-reviewed methodologies while maintaining independence from institutional biases.^[1]^[11]

Expansion and Key Milestones

In 2014, Our World in Data publicly launched its website in May, attracting an average of 20,000 monthly visitors over the subsequent six months and securing a £75,883 grant from the Nuffield Foundation to support operations from December 2014 to November 2015.^[8]^[12] This period marked initial expansion beyond Max Roser's solo efforts, with the platform shifting focus to interactive visualizations of global development data. By 2015, the team grew to include web developer Zdenek Hynek in May and researchers Lindsay Lee and Mohamed Nagdy in July, alongside raising $26,086 through crowdfunding to fund further development.^[8] Team expansion accelerated in 2016 with the addition of Esteban Ortiz-Ospina and Jaiden Mispy in February, followed by a grant from the Bill & Melinda Gates Foundation in August that enabled hiring and data infrastructure improvements.^[8] In 2017, Hannah Ritchie joined in April to lead research efforts, while research assistants and database manager Aibek Aldabergenov were brought on, automating management of over 70,000 data variables across topics like poverty and emissions.^[8]^[12] The platform's audience grew substantially by 2018, becoming the top Google search result for queries on key issues such as CO2 emissions, reflecting enhanced visibility and data accessibility.^[8] That year, Our World in Data launched SDG-Tracker.org to monitor progress on the United Nations Sustainable Development Goals, coinciding with hires like Joe Hasell and Anstey Brock, and the founding of the Global Change Data Lab as its nonprofit parent organization.^[8]^[12] Acceptance into Y Combinator in 2019 provided $150,000 in seed funding, prompting a temporary relocation to Silicon Valley and additions like Matthieu Bergel and Bernadeta Dadonaite, while monthly visitors reached 1 million, primarily via organic search traffic.^[8]^[12] The COVID-19 pandemic catalyzed rapid growth in 2020, with the Coronavirus Data Explorer launching on May 15 to track global cases, testing, and later vaccinations, drawing Edouard Mathieu as Head of Data and spiking audience interest.^[6]^[12] By 2021, the team expanded from 6 to 20 staff members, and the site recorded 89 million unique visitors, underscoring its role as a primary resource for empirical pandemic data.^[12] Subsequent milestones included the 2022 Democracy Data Explorer integrating eight major datasets on governance indicators and a partnership with Metaculus for long-term forecasting, followed by an updated SDG Tracker in July 2023 and the introduction of "Data Insights" short analyses in March 2024.^[12]

Organizational and Financial Aspects

Leadership and Team Structure

Global Change Data Lab, the UK-registered non-profit charity (No. 1186433) that publishes and maintains Our World in Data, is co-led by executive directors Max Roser and Esteban Ortiz-Ospina.^[9]^[13] Roser, the founder, serves as editor and directs the overall publication, while holding a professorship at the University of Oxford's Oxford Martin Programme on Global Development, where the research team is affiliated.^[9]^[2] Ortiz-Ospina, an honorary researcher at the same Oxford program, co-leads operations and strategy for the lab.^[13] The board of trustees provides governance, chaired by Hetan Shah, CEO of the British Academy and visiting professor at King's College London.^[2] Other trustees include Wendy Carlin, a director at Global Change Data Lab and economics professor at University College London; Rachel Glennerster, associate professor at the University of Chicago; Andrew Dilnot, warden of Nuffield College, Oxford; Claire Melamed, head of the Global Partnership for Sustainable Development Data; and Michael Blastland, a writer and broadcaster.^[2] Carlin, a founding board member, contributes expertise in economic education and policy.^[2] Internally, the team operates through integrated departments focused on research, data processing, product design, engineering, and operations, emphasizing close collaboration among approximately 20 core members as of recent records.^[14] The data and research team, headed by Edouard Mathieu since his 2023 promotion, handles data verification, analysis, and content creation, with roles including principal data scientists and junior researchers.^[15] Product, design, and engineering are led by Joe Hasell as head of product and design, and Daniel Bachler as head of engineering (promoted in early 2025), supporting visualization tools, web development, and user interfaces.^[15] Operations cover finance, HR, and strategy, overseen by senior managers.^[15] Hannah Ritchie, deputy editor and science outreach lead since 2023, coordinates editorial and public engagement efforts, building on her prior role as head of research.^[16] This structure enables the production of data-driven articles and interactive charts through interdisciplinary workflows.^[17]

Funding Sources and Donors

Our World in Data operates as a project of the Global Change Data Lab (GCDL), a UK-registered nonprofit charity (No. 1186433), which relies on a combination of individual donations and philanthropic grants for its funding.^[7] This model emphasizes unrestricted contributions to preserve editorial independence and focus on data-driven analysis without external influence on content selection or presentation.^[7] GCDL does not accept government funding, prioritizing sources that align with long-term, evidence-based progress on global challenges.^[18] Individual donations form the core of its financial stability, with more than 4,000 contributors providing support over recent years, including many recurring monthly pledges.^[7] Donors are invited to opt into public listing, and a significant portion have done so, enabling transparency while fostering a broad base of small-scale, grassroots funding that reduces reliance on any single entity.^[7] This approach traces back to early crowdfunding efforts, such as a 2015 campaign via Tilt.com, which helped bootstrap the project's expansion.^[7] Key philanthropic grants supplement individual contributions, including ongoing support from the Bill and Melinda Gates Foundation and the Quadrature Climate Foundation.^[18] In April 2024, GiveWell awarded a $400,000 unrestricted grant to bolster OWID's research, data curation, and dissemination activities, recognizing its role in informing effective altruism and global development decisions.^[19] These foundations provide targeted but flexible funding, often for specific initiatives like health metrics or environmental data visualization, without imposing content restrictions.^[18] GCDL maintains financial transparency through audited annual reports, which detail income, expenditures, and donor impacts, available publicly for scrutiny.^[7] A notable instance of funding caution occurred in 2022, when the FTX Future Fund pledged $7.5 million but the grant was ultimately declined amid the exchange's collapse and associated uncertainties, demonstrating prioritization of reliable, ethical support over short-term gains.^[20] Overall, this diversified, donor-led structure—averaging millions in annual revenue primarily from private sources—enables OWID to sustain free access to its datasets and visualizations while mitigating risks of bias from concentrated funding.^[2]

Collaborations and Data Partnerships

Our World in Data operates through a primary collaboration between researchers affiliated with the University of Oxford's Oxford Martin Programme on Global Development, who serve as scientific contributors and editors, and the Global Change Data Lab, a UK-based non-profit organization that owns, publishes, and maintains the platform's website, datasets, and visualization tools.^[1]^[2] This partnership, established since OWID's inception, divides responsibilities such that Oxford researchers focus on empirical analysis and content creation, while the Global Change Data Lab handles technical infrastructure, data processing, and dissemination.^[18] For data acquisition, OWID does not maintain exclusive partnerships but aggregates and processes publicly available datasets from international institutions including the United Nations, World Health Organization, World Bank, and national statistical agencies.^[21] These sources provide the raw empirical data underlying OWID's visualizations, with the organization applying standardized cleaning, harmonization, and verification protocols to ensure consistency across time series and metrics.^[1] Third-party data remains subject to original licensing terms, and OWID credits providers directly in individual charts and datasets.^[21] In specific initiatives, such as the COVID-19 data tracker launched in 2020, OWID's team expanded internal collaborations to compile daily-updated global metrics from over 100 sources, filling gaps in official reporting through crowdsourced verification and direct outreach to national health authorities.^[6] This effort, while not formalized as a partnership, positioned OWID as a de facto hub for aggregated data, subsequently referenced by entities like the United Nations Population Division.^[22] Overall, OWID's model emphasizes open access to verified public data over proprietary arrangements, enabling broad reuse under Creative Commons licensing.^[1]

Data Methodology and Content Focus

Data Collection and Verification Processes

Our World in Data aggregates data from established international organizations, academic publications, and specialized research institutes rather than conducting primary data collection. Primary sources include the United Nations, World Health Organization, World Bank, Organisation for Economic Co-operation and Development, and entities such as the Peace Research Institute Oslo, with selections prioritizing comprehensive coverage and methodological rigor for specific metrics.^[21] Government-reported data, such as national health ministry figures during events like the COVID-19 pandemic, supplements these when aligned with global standards.^[21] Sources are explicitly linked in each visualization and dataset to facilitate traceability.^[21] Data processing employs an open-source Extract, Transform, Load (ETL) pipeline to standardize disparate inputs into a unified format suitable for cross-country and temporal comparisons. Extraction pulls raw data from provider files or APIs; transformation steps encompass cleaning inconsistencies, harmonizing units and definitions (e.g., converting metrics to per capita terms or aggregating regional estimates), and addressing gaps through interpolation or noted assumptions where original sources permit. The pipeline's code is publicly accessible on GitHub, allowing replication and scrutiny of transformations.^[23] This approach ensures comparability across metrics like poverty rates or energy consumption, with methodological notes detailing any adjustments.^[24] Verification emphasizes quality control through anomaly detection, where deviations in trends—such as unexpected spikes in reported figures—are systematically investigated and cross-referenced against alternative sources.^[24] Collaboration with original providers occurs to confirm or correct errors, as seen in iterative updates to datasets like global health indicators.^[24] Reliability relies on the credibility of upstream providers, with OWID avoiding unsubstantiated estimates and flagging limitations, such as definitional changes over time (e.g., shifts in poverty measurement thresholds).^[21] Comprehensive metadata accompanies each dataset, outlining sources, update frequencies, and potential biases in original reporting, enabling users to assess accuracy independently.^[24] This transparency mitigates risks from source-specific errors while preserving the empirical foundation of aggregated insights.^[25]

Core Topics and Visualization Approach

Our World in Data concentrates on key domains of global progress and challenges, including population and demographic change, health, poverty and economic development, food and agriculture, energy and environment, education and knowledge, and innovation. These topics are chosen for their centrality to empirical analysis of human advancement and existential risks, drawing from extensive datasets spanning centuries.^[1] In health, coverage includes metrics like child mortality rates, which fell from 432 per 1,000 births in 1800 to 37 per 1,000 in 2019, and life expectancy, which rose globally from 31 years in 1800 to 72 years in 2019. Poverty topics track extreme poverty prevalence, declining from 94% of the world population in 1820 to 8.5% in 2019. Food and agriculture examine undernourishment and agricultural yields, while energy and environment address consumption patterns and emissions, such as cumulative CO2 emissions since 1750.^[4] The visualization approach emphasizes long-term time-series data to reveal trends often obscured by short-term fluctuations, using interactive line charts for temporal changes, bar and area charts for comparisons, and maps for spatial distributions. Charts are designed for accessibility, with defaults highlighting global aggregates and options to disaggregate by region or country, sourced from harmonized data by organizations like the United Nations and World Bank. This method supports causal inference by juxtaposing related indicators, such as linking economic growth to poverty reduction, while prioritizing empirical evidence over narrative-driven interpretations.^[26]^[1]

Handling of Specific Global Issues

Our World in Data addresses specific global issues through aggregation of long-term datasets from institutions like the World Bank, United Nations, and World Health Organization, prioritizing comparable metrics across countries and time periods to reveal trends in human progress and challenges.^[5] For topics such as poverty, health, and climate change, the organization employs interactive visualizations that contextualize absolute changes alongside relative ones, incorporates methodological notes on data limitations (e.g., survey inconsistencies or projection assumptions), and revises content when underlying sources update, as seen in adjustments to poverty thresholds reflecting new purchasing power parity calculations.^[21] Extreme poverty receives detailed treatment via the World Bank's International Poverty Line of $3 per day (in 2021 international dollars), which measures consumption or income below a threshold adjusted for inflation, cost-of-living differences, and non-market sources like subsistence farming.^[3] This approach tracks a reduction from 2.31 billion people in 1990 to 808 million in 2025, equating to an average annual decline of 42.9 million individuals, primarily driven by economic growth in Asia, though Sub-Saharan Africa's share has risen due to population increases and slower progress.^[3] Data stems from national household surveys compiled in the World Bank's Poverty and Inequality Platform, with projections extrapolated from GDP growth rates; a June 2025 update to the poverty line from $2.15 added 125 million to estimates, highlighting sensitivity to purchasing power parity revisions and debates over survey comparability (e.g., income-based in high-income nations versus consumption-based in low-income ones).^[27]^[28] Climate change analysis centers on empirical records of emissions and impacts, sourcing historical CO2 and greenhouse gas data from datasets like the Global Carbon Project and attributing rises primarily to human activities since the Industrial Revolution.^[29] Visualizations depict cumulative emissions by region since 1750, showing concentrations in early industrializers like Europe and North America, alongside per capita trends and decoupling from economic growth in some sectors.^[30] OWID integrates projections from bodies like the Intergovernmental Panel on Climate Change, emphasizing emission reduction pathways to limit warming, while linking solutions to transitions in energy production and food systems; impacts such as sea level rise (averaging 3.7 mm annually since 2006) and glacier mass loss are quantified with uncertainty ranges from satellite and proxy data.^[29] Global health metrics, including child mortality and life expectancy, draw from harmonized vital registration systems and demographic surveys, revealing declines like child mortality from 93 deaths per 1,000 live births in 1990 to 37 in 2021.^[31] Verification involves cross-checking against multiple providers (e.g., WHO and UN Population Division) for consistency, with updates incorporating new epidemiological models; for instance, disease burden estimates account for underreporting in low-data regions via imputation techniques, and COVID-19 data aggregation highlighted testing disparities affecting case fatality interpretations.^[31] This framework underscores causal links, such as vaccination coverage correlating with reduced infectious disease mortality, while noting gaps in mental health data due to inconsistent global reporting.^[31]

Usage, Impact, and Reception

Global Reach and User Engagement

Our World in Data's website attracted nearly 59 million page views in 2024, averaging approximately 163,000 views per day.^[32] Earlier metrics indicate substantial growth, with over 8.5 million unique monthly users reported in 2021, reflecting increased visibility during global events like the COVID-19 pandemic.^[33] The platform's audience primarily consists of knowledge workers, including business professionals, technology specialists, educators, medical personnel, and researchers from high-income countries, though its data visualizations and articles draw international interest across English-speaking and other regions.^[34] User engagement centers on interactive exploration of charts and data, with 25% of surveyed users primarily accessing visualizations to analyze trends, while 22% use the site for fact-checking and referencing.^[34] Downloads for further analysis account for about 17.5% of interactions among engaged users, compared to lower rates for casual browsing.^[34] Newsletter subscriptions reached 100,000 in 2024, supporting repeated visits, while social media followers exceeded 600,000, marking a 25% annual increase and facilitating shares of key insights.^[32] The site's global footprint extends through embeddings and citations, with charts featured on Wikipedia pages viewed over 600 million times in 2024 and referenced in approximately 6,000 media articles worldwide.^[32] Academic engagement is evident in over 9,200 scholarly publications citing its work that year, per Google Scholar data, underscoring its role in informing diverse international audiences despite a concentration in developed economies.^[32]

Influence on Policy and Public Awareness

Our World in Data has informed policymaking through its datasets and visualizations, which have been referenced in official documents such as those related to the United Kingdom's net zero emissions strategy and food security assessments.^[35] Its COVID-19 data, including metrics on confirmed cases and vaccination policies, were cited in the UK Covid-19 Inquiry's evidence submissions, aiding analysis of government responses.^[36] Additionally, the platform's aggregation of global indicators has supported policy tracking efforts, as seen in its integration with tools like the Oxford Policy Management Tracker for visualizing responses across areas such as international travel controls and economic support during crises.^[37] The organization's emphasis on accessible, evidence-based trends has elevated public awareness of empirical progress amid prevailing narratives of decline. With an estimated 100 million annual users, Our World in Data reaches a broad audience, fostering data literacy on topics from poverty reduction to health improvements.^[38] Prominent figures, including Bill Gates, have amplified its visibility by endorsing it as a key resource for understanding global issues, sharing its insights on platforms that influence public discourse.^[39] During the COVID-19 pandemic, the platform's real-time data dashboards on infections, vaccinations, and excess mortality exploded in usage, becoming a primary reference for journalists, researchers, and the general public, thereby shaping perceptions of pandemic dynamics and global inequities.^[40] By highlighting verifiable long-term improvements—such as the decline in extreme poverty from over 40% of the global population in 1980 to under 10% by 2015—its content challenges misconceptions that trends are worsening, promoting a more nuanced view grounded in historical data.^[38]

Achievements in Data-Driven Optimism

Our World in Data has compiled extensive historical datasets demonstrating marked improvements in global human welfare, fostering a perspective grounded in empirical progress rather than anecdotal pessimism. Key visualizations reveal that extreme poverty affected over 80% of the world's population in the early 19th century but declined to under 10% by the early 21st century, driven by economic growth and technological advancements.^[41] Similarly, average global life expectancy rose from approximately 31 years in 1800 to 72 years by 2019, reflecting advances in healthcare, sanitation, and nutrition.^[41] The organization's interactive charts on topics such as child mortality reductions—from over 40% of children dying before age 5 in 1800 to under 4% in recent decades—and literacy rates increasing from negligible levels to over 85% globally have popularized these trends among policymakers and the public.^[41] Specific successes include tracking the near-eradication of diseases like guinea worm, with reported cases falling from 890,000 in 1989 to 15 in 2024 through coordinated international efforts.^[5] These data presentations challenge prevailing narratives of stagnation by emphasizing causal factors such as innovation and institutional reforms.^[42] OWID's emphasis on long-term trends has garnered endorsements from influential figures, including Bill Gates, who has praised the platform for its rigorous, data-driven analyses of global challenges and opportunities.^[43] Researchers affiliated with the project, such as Hannah Ritchie, have extended this approach to environmental issues, arguing for cautious optimism based on evidence of resource efficiency gains, like China's rapid expansion of electric vehicles where half of new cars sold in 2024 were electric.^[44] This work has contributed to broader discourse on rational optimism, highlighting instances of progress such as Kenya's electricity access surging from 5% in 1993 to 76% in 2023.^[5] By making comprehensive, verifiable data freely accessible, Our World in Data has enabled users to recognize that substantial advancements have occurred across metrics of wellbeing, despite persistent problems, thereby supporting evidence-based strategies for continued improvement.^[1]

Criticisms and Controversies

Methodological and Interpretive Critiques

Critics have questioned Our World in Data's (OWID) use of the World Bank's $1.90 per day (2011 PPP) extreme poverty threshold, arguing it establishes an insufficiently calibrated benchmark that systematically underestimates poverty levels, especially when compared to historical standards of subsistence based on caloric needs, shelter, and basic goods. In a 2022 peer-reviewed study published in World Development, economists Jason Hickel and Dylan Sullivan analyzed real wages, human height data as a proxy for nutrition, and records of fatal shocks from the Palaeolithic era onward, concluding that pre-19th century extreme poverty rates were closer to 10-20% rather than the near-universal 90% implied by OWID's metrics, attributing the discrepancy to flawed purchasing power parity (PPP) adjustments and anachronistic application of modern low-income thresholds to diverse historical economies.^[45] Hickel further critiqued OWID founder Max Roser's defenses of the measure, asserting that while aggregate incomes have risen, they often fail to lift populations above even this low bar in absolute terms, and that alternative metrics reveal slower poverty alleviation when accounting for regional cost-of-living variations and non-monetary deprivations.^[46] On interpretive grounds, OWID's emphasis on long-term upward trends in human development indicators—such as declining child mortality or rising literacy—has been accused of overlooking methodological artifacts in data aggregation, including inconsistencies in historical reporting standards and survivorship bias in long-series datasets that favor documented improvements over undocumented setbacks. Researchers in data visualization have highlighted risks of selective chart design mimicking OWID's style, where truncated y-axes or zoomed timelines amplify progress narratives while compressing recent volatility, potentially misleading users despite OWID's open-source code and sourcing from bodies like the United Nations and FAO.^[47] In environmental analyses, interpretive critiques focus on OWID's framing of metrics like carbon intensity reductions as evidence of sustainable decoupling, which opponents contend ignores absolute emission growth and thermodynamic constraints on resource throughput, prioritizing human-centric gains over holistic ecosystem indicators. A 2024 commentary described this as an anthropocentric bias, where datasets on deforestation or biodiversity are presented incrementally ("awful, but better than ever") without integrating planetary boundary models that signal overshoot in critical Earth systems like biosphere integrity.^[48] Such approaches, while grounded in verifiable UN and IPCC-sourced figures, are said to foster complacency by de-emphasizing causal links between consumption-driven progress and irreversible biophysical tipping points.^[49]

Ideological and Bias Allegations

Critics, primarily from environmentalist and degrowth perspectives, have accused Our World in Data (OWID) of harboring an ideological bias toward techno-optimism and unbounded economic growth, framing human progress in ways that marginalize ecological constraints and non-human impacts. Alexander E. Hooke, writing in CounterPunch, contends that OWID's visualizations promote a "cheerful view of capitalist business-as-usual," aligning with libertarian ideologies while selectively highlighting metrics of human advancement—such as declining poverty rates—without crediting state interventions or social movements that curbed capitalist excesses. Hooke further alleges anthropocentrism, noting OWID's neglect of biodiversity loss and other-than-human welfare, exemplified by its dismissal of overpopulation concerns as a "myth" despite reports like the 2023 PNAS Nexus study on Earth's carrying capacity.^[48]^[48]^[50] Jason Hickel, an academic economist advocating degrowth, has specifically critiqued OWID's long-term global poverty estimates as methodologically flawed and ideologically deployed to bolster narratives of market-driven progress. Hickel argues that founder Max Roser's integration of historical GDP proxies (from Angus Maddison's dataset) with modern World Bank surveys overstates poverty reduction by ignoring non-monetary subsistence economies eroded under colonialism and by using an arbitrarily low $1.90 daily threshold, which obscures persistent deprivation affecting 58% of the global population under $7.40 per day since 1981. He attributes this to an agenda shared with figures like Bill Gates and Steven Pinker, who leverage OWID's graphs to downplay systemic inequalities and historical exploitation in favor of a triumphant arc of liberalization.^[46]^[46]^[46] OWID's affiliations with effective altruism (EA) and funding from billionaire philanthropists have amplified claims of skewed priorities, such as favoring longtermist interventions over immediate ecological risks. The organization shares office space with the Centre for Effective Altruism and has received grants from EA-linked entities including the Centre itself, Open Philanthropy, and Elon Musk (starting 2021), alongside major support from the Bill and Melinda Gates Foundation, which Gates has praised as his "favorite website." Critics like those in Planet: Critical assert this fosters a "pro-growth" ideology, evident in researcher Hannah Ritchie's endorsements of "green growth" and pronatalism, which they view as unscientific for disregarding biophysical limits and current generational harms in the Global South.^[48]^[51]^[7] In contrast, Media Bias/Fact Check rates OWID as left-center biased, citing story selection that favors progressive themes like global health equity and uses mildly loaded language for liberal causes, while upholding high factual reliability through sourcing from institutions such as the World Bank and UNESCO. These assessments underscore debates over framing rather than data fabrication, with OWID's emphasis on empirical trends in innovation and poverty alleviation reflecting its founders' worldview, yet drawing ire from sources prioritizing systemic critiques over aggregate improvements.^[52]^[52]

Environmental and Anthropocentric Debates

Critics of Our World in Data (OWID) have accused its analyses of embodying an anthropocentric worldview, prioritizing metrics of human welfare—such as poverty reduction, life expectancy, and economic growth—while allegedly sidelining the intrinsic value of non-human ecosystems and the full scope of ecological degradation.^[48] For instance, OWID visualizations often correlate rising GDP with declines in extreme poverty, as seen in data from 1820 to 2020 showing global extreme poverty falling from over 90% to under 10%, but detractors contend this obscures localized environmental costs, such as habitat loss in regions like Sarawak, Malaysia, where GDP gains from logging and plantations have eroded Indigenous food sovereignty and biodiversity without corresponding human benefits for affected communities.^[53] This perspective aligns with broader claims that OWID, influenced by funding from figures like Bill Gates, promotes a neoliberal narrative that treats nature as a resource for human advancement rather than a system with independent limits.^[48] A focal point of contention is OWID's emphasis on decoupling economic growth from environmental impacts, exemplified by researcher Hannah Ritchie's arguments that high-income countries have reduced resource intensities through technological efficiency, with global material footprint per unit of GDP declining by approximately 20% since 2000. Ritchie, in her 2023 book Not the End of the World, posits that innovations like precision agriculture and renewable energy transitions enable continued prosperity without proportional ecological harm, citing examples such as European Union carbon intensity dropping 40% from 1990 to 2020 amid GDP growth. However, ecological economists like Timothée Parrique counter that absolute decoupling—essential for sustainability—remains elusive, with studies showing no such separation for aggregate resource use or material extraction in most nations; for instance, only 11 countries achieved absolute decoupling of GDP from consumption-based CO2 emissions between 1990 and 2015, at rates too slow to meet climate targets (requiring over 220 years for net-zero in some cases).^[54]^[55] Parrique further argues that rebound effects, where efficiency gains spur increased consumption, undermine these claims, as evidenced by global material use rising 70% from 70 billion tons in 1990 to 120 billion tons in 2020 despite efficiency improvements.^[56]^[57] Debates intensify around frameworks like planetary boundaries, where a 2023 update by researchers including Johan Rockström identified six of nine boundaries transgressed—climate change, biosphere integrity, land-system change, freshwater use, biogeochemical flows, and novel entities—due to human activities pushing Earth systems toward instability.^[58] OWID counters with granular data trends, such as agricultural yields tripling since 1960, reducing cropland pressure and enabling reforestation on 10% more land globally since 2000, suggesting that targeted human interventions can operate within or restore boundaries rather than requiring systemic contraction. Critics, however, view this as overly anthropocentric optimism, asserting that breached boundaries necessitate reduced throughput in affluent economies to allocate biophysical space for developing regions, rather than relying on unproven scaling of green technologies; for example, global biodiversity loss persists with species extinction rates 100-1,000 times background levels, unmitigated by yield gains alone.^[54]^[59] These exchanges highlight tensions between data-driven progress narratives and calls for precautionary limits, with empirical evidence supporting partial efficiencies but contested scalability amid rebound dynamics and uneven global distributions.^[55]^[56]

References

[1]
About Us
### Summary of Our World in Data
[2]
Our Organization - Our World in Data
Our World in Data is a project of the Global Change Data Lab, a non-profit organization based in the United Kingdom (Registered Charity Number 1186433).
[3]
Poverty - Our World in Data
On this page you can find all our data, visualizations and writing relating to poverty. This work aims to help you understand the scale of the problem today.Data Explorer · OWID Data Collection · Extreme poverty · From $1.90 to $2.15 a dayMissing: founded | Show results with:founded<|separator|>
[4]
Life Expectancy - Our World in Data
On this page, you will find global data and research on life expectancy and related measures of longevity: the probability of death at a given age, the sex gap ...Life expectancy: what does this · Twice as long · Than in other rich countries? · HasMissing: founded | Show results with:founded
[5]
Our World in Data
Our World in Data is a project of Global Change Data Lab, a nonprofit based in the UK (Reg. Charity No. 1186433). Our charts, articles, and data are licensed ...About · Search · Population Growth · Poverty
[6]
How our team at Our World in Data became a global data source on ...
Nov 18, 2024 · Our World in Data (OWID) was a small team with large ambitions. We made data and research on global issues like poverty, climate, and global health accessible ...
[7]
How We're Funded - Our World in Data
Our World in Data is a collaborative effort between researchers at the University of Oxford, who are the scientific editors of the website content; and the non ...
[8]
History of Our World in Data
Our World in Data is a project of Global Change Data Lab, a nonprofit based in the UK (Reg. Charity No. 1186433). Our charts, articles, and data are licensed ...
[9]
Max Roser - Our World in Data
Max is the founder of Our World in Data and began working on this free online publication in 2011. Today, he serves as the publication's editor and leads the ...
[10]
OurWorldInData.org – a new web publication by INET Oxford shows ...
Oct 27, 2014 · OurWorldinData.org is a new web publication that portrays the social, economic, and environmental history of our world up to the present day.Missing: affiliation | Show results with:affiliation
[11]
https://www.oxfordmartin.ox.ac.uk/global-development/
[12]
Timeline of Our World in Data
Max Roser starts working on the idea for Our World in Data while in Brazil. Moving to Oxford in 2012, he begins collaborating with Tony Atkinson on income ...Missing: affiliation | Show results with:affiliation
[13]
Esteban Ortiz-Ospina - Our World in Data
... issues.Prior to joining the team at Our World in Data, Esteban was a ... Our peer-reviewed article outlines seven ways to publish data better.Missing: methodology flaws
[14]
Jobs at Our World in Data | Y Combinator
Our World in Data. No jobs at Our World in Data are currently posted on the YC platform. Our World in Data. Founded:2013. Batch:W19. Team Size:19.
[15]
Our Team - Our World in Data
Max is the founder of Our World in Data and began working on this free online publication in 2011. Today, he serves as the publication's editor and leads ...
[16]
Hannah Ritchie - Our World in Data
Hannah joined us in 2017. She became Deputy Editor and Science Outreach Lead at Our World in Data in 2023. She was previously Head of Research.
[17]
How we're building a team for better data at Our World in Data
Jan 31, 2022 · OWID is produced as a close collaboration between three teams: a research team, a data team, and a team of software and web developers.
[18]
Global Change Data Lab
Global Change Data Lab is supported by donations from several thousand readers of the web publication Our World in Data, as well as grants from the Quadrature ...Missing: Philanthropy | Show results with:Philanthropy
[19]
Our World in Data — Unrestricted Funding (April 2024) | GiveWell
In April 2024, GiveWell recommended a $400000 grant to Our World in Data as an unrestricted grant intended to provide broad support to an organization that ...
[20]
Is the collapse of Bankman-Fried's FTX crypto empire the ... - Fortune
Nov 14, 2022 · Max Roser, the founder and director of Our World in Data, emailed that while his organization had applied for a grant from the FTX Fund and the ...
[21]
FAQs and User Guidelines - Our World in Data
Official data from government sources; for example, our COVID-19 vaccination and testing datasets compiled the official numbers published by governments and ...
[22]
None
### Summary of User Engagement and Website Traffic Metrics (2024 Annual Report)
[23]
Our journey - ETL documentation
Learn about the ETL pipeline at Our World in Data ... To this end, we developed the current project, the ETL, as the next stage in how we process data.
[24]
We've made it much easier to reuse our data
Nov 21, 2024 · When you use data from Our World in Data, you're benefiting from our rigorous data processing workflow: Careful data selection: We aim to ...Missing: verification | Show results with:verification
[25]
https://docs.owid.io/projects/etl/api/#chart-data-api
[26]
Redesigning our interactive data visualizations - Our World in Data
Oct 18, 2023 · We have redesigned our interactive visualizations to improve their layout and functionality. Three product and engineering team members ...
[27]
https://ourworldindata.org/new-international-poverty-line-3-dollars-per-day
[28]
https://pip.worldbank.org/home
[29]
Climate Change - Our World in Data
On this page, you will find global data and research on the impacts of climate change, including temperature anomalies, sea level rise, sea ice melt, glacier ...People care about climate... · How much have temperatures... · Natural Disasters
[30]
https://ourworldindata.org/co2-and-greenhouse-gas-emissions
[31]
Global Health - Our World in Data
On this page, we provide an overview of global health, emphasizing data on health outcomes – such as disease and death – and the effects of healthcare ...<|separator|>
[32]
[PDF] GLOBAL CHANGE DATA LAB
Aug 19, 2025 · GCDL's flagship project is the web publication Our World in Data (OWID), where we communicate data and research to address the world's greatest ...
[33]
[PDF] Trustees' Annual Report and Financial Statements for the Year ...
Over the period 1 January - 31 December 2021, Our World in Data had more than 8.5 million unique users per month, and our articles and charts were referenced ...
[34]
Audience Survey - Who uses Our World in Data, and for what ...
Oct 5, 2020 · Most respondents (25%) say they explore our data using our charts and visualizations. In our total audience, about 16% of users interact with a ...Missing: engagement statistics
[35]
Our World in Data Transforming data into global impact.mp4
Feb 19, 2025 · Our World in Data Transforming data into global impact.mp4 · Check out this great new video about Our World in Data from Oxford University Social ...Missing: influence | Show results with:influence
[36]
[PDF] UK: Daily new confirmed COVID-19 - UK Covid-19 Inquiry
Government of the United Kingdom. (2024) - with minor processing by Our World in Data. "UK: Daily new confirmed COVID-19 deaths" [dataset]. Government of the.
[37]
The tool that captured the global response to an unprecedented crisis
Jul 25, 2023 · Our World in Data, for instance, used the Tracker's data to publish visualizations across several different policy areas. 'By tracking and ...
[38]
Understanding our world, one dataset at a time | Oxford Martin School
Oct 3, 2025 · Our World in Data continues to inform public debate and policymaking. ... Policy and impact · Publications · Videos · Health · Policy and impact ...Missing: influence | Show results with:influence
[39]
My thoughts on 'How the World Really Works' | Bill Gates
... Our World in Data, an online platform that publishes some of my favorite data-driven articles and graphics on global issues today. (The Gates Foundation is ...
[40]
Max Roser on building the world's first great source of COVID-19 ...
Jun 21, 2021 · An economist at Oxford University, Max Roser founded Our World in Data as a small side project in 2011 and has led it since, including through the wild ride of ...
[41]
The short history of global living conditions and why it matters that ...
Dec 14, 2016 · In this article, we look at the history of global living conditions and show that the world has made immense progress in important aspects.
[42]
Optimism and Pessimism - Our World in Data
Sep 18, 2017 · On this page we look at data and research on optimism and pessimism, and how this is influenced by context and social circumstances.Missing: promoting | Show results with:promoting
[43]
An optimistic book on the environment | Bill Gates
... Our World in Data, an online platform that publishes some of my favorite data-driven articles and graphics on global issues today. (The Gates Foundation is ...
[44]
A data scientist's case for 'cautious optimism' about climate change
and still can be — made. ... influential website, Our World in Data. Not ...
[45]
Capitalism and extreme poverty: A global analysis of real wages ...
This paper assesses claims that, prior to the 19th century, around 90% of the human population lived in extreme poverty.
[46]
A response to Max Roser: how not to measure global poverty
Feb 6, 2019 · Indeed, I pointed out that the incomes of the poor are going up in aggregate, but – crucially – not enough to raise them out of poverty. That's ...<|separator|>
[47]
Visualization Guardrails: Designing Interventions Against Cherry ...
Apr 25, 2025 · For an example, see the cherry-picked charts in the style of the Financial Times and Our World in Data in Figure 2, both reputable sources.
[48]
The Unbearable Anthropocentrism of Our World in Data
Jul 26, 2024 · Roughly a decade ago, a 30-year-old economic statistician at Oxford University named Max Roser set out to transform the way we see the world ...
[49]
How Accurate and Reliable is "Our World in Data" as a Source for ...
Sep 22, 2024 · OWID is a widely used platform that provides accessible data on a range of topics like global health, economics, environment, and education.Missing: verification | Show results with:verification
[50]
https://academic.oup.com/pnasnexus/article/3/4/pgae106/7638480
[51]
Our World in Data - InfluenceWatch
Our World in Data began as compiled research notes written by Global Change Data Lab founder Max Roser in 2011. Roser originally aimed to write a book on ...
[52]
Our World In Data - Bias and Credibility - Media Bias/Fact Check
May 15, 2018 · Overall, we rate Our World in Data (OWID) Left-Center biased due to their story selection (reporting from left perspective) and highly factual ...
[53]
https://www.aljazeera.com/opinions/2021/6/10/the-poverty-of-economic
[54]
A response to Hannah Ritchie: How I Learned to Stop Worrying and ...
Jan 26, 2024 · Controversies · Videos ... Second, I would be curious to see actual studies (and not only the raw, unanalysed numbers from Our World in Data ...
[55]
https://www.sciencedirect.com/science/article/pii/S2352550922003414
[56]
https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(23)00174-2/fulltext
[57]
https://timotheeparrique.com/decoupling-in-the-ipcc-ar6-wgiii/
[58]
Earth beyond six of nine planetary boundaries | Science Advances
Sep 13, 2023 · This planetary boundaries framework update finds that six of the nine boundaries are transgressed, suggesting that Earth is now well outside of the safe ...
[59]
'Not the End of the World' book assumptions & omissions spark debate
Jan 16, 2024 · The head of research at online publication Our World in Data, Hannah Ritchie, joins the Mongabay Newscast to discuss her new “radically ...