Hannah Ritchie

5.5k total citations · 2 hit papers
37 papers, 3.1k citations indexed

About

Hannah Ritchie is a scholar working on Ecology, General Agricultural and Biological Sciences and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Hannah Ritchie has authored 37 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Ecology, 5 papers in General Agricultural and Biological Sciences and 3 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Hannah Ritchie's work include Agriculture Sustainability and Environmental Impact (6 papers), Bioeconomy and Sustainability Development (3 papers) and COVID-19 epidemiological studies (3 papers). Hannah Ritchie is often cited by papers focused on Agriculture Sustainability and Environmental Impact (6 papers), Bioeconomy and Sustainability Development (3 papers) and COVID-19 epidemiological studies (3 papers). Hannah Ritchie collaborates with scholars based in United Kingdom, United States and Sweden. Hannah Ritchie's co-authors include Max Roser, Max Roser, Edouard Mathieu, Charlie Giattino, Esteban Ortiz-Ospina, Joe Hasell, Cameron Appel, David Reay, Peter Higgins and Bobbie Macdonald and has published in prestigious journals such as Nature, PLoS ONE and Nutrients.

In The Last Decade

Hannah Ritchie

36 papers receiving 3.0k citations

Hit Papers

A global database of COVID-19 vaccinations 2020 2026 2022 2024 2021 2020 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. A global database of COVID-19 vaccinations
    2021 1.1k citations Edouard Mathieu, Hannah Ritchie et al. Nature Human Behaviour profile →
  2. CO₂ and Greenhouse Gas Emissions
    2020 586 citations Hannah Ritchie, Max Roser profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hannah Ritchie United Kingdom 18 808 705 550 447 287 37 3.1k
Justin V. Remais United States 30 608 0.8× 276 0.4× 302 0.5× 277 0.6× 802 2.8× 93 4.6k
Simon Hales New Zealand 40 1.3k 1.6× 368 0.5× 451 0.8× 367 0.8× 324 1.1× 126 7.1k
Smriti Mallapaty Australia 30 1.4k 1.8× 457 0.6× 338 0.6× 402 0.9× 77 0.3× 220 3.8k
Peng Jia China 46 1.0k 1.3× 294 0.4× 366 0.7× 641 1.4× 216 0.8× 321 8.3k
Ying Zhang China 48 1.1k 1.4× 178 0.3× 416 0.8× 147 0.3× 256 0.9× 330 8.1k
Thomas Clasen United States 54 1.0k 1.3× 132 0.2× 176 0.3× 307 0.7× 141 0.5× 218 10.4k
Hui Jin China 28 1.2k 1.5× 338 0.5× 858 1.6× 299 0.7× 39 0.1× 237 3.8k
Helen Onyeaka United Kingdom 38 507 0.6× 153 0.2× 185 0.3× 249 0.6× 181 0.6× 243 5.0k
Marta Blangiardo United Kingdom 37 274 0.3× 365 0.5× 382 0.7× 523 1.2× 164 0.6× 138 5.4k
Rabeea Siddique China 21 1.4k 1.7× 481 0.7× 116 0.2× 361 0.8× 61 0.2× 38 3.9k

Countries citing papers authored by Hannah Ritchie

Since Specialization
Citations

This map shows the geographic impact of Hannah Ritchie's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hannah Ritchie with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hannah Ritchie more than expected).

Fields of papers citing papers by Hannah Ritchie

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hannah Ritchie. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hannah Ritchie. The network helps show where Hannah Ritchie may publish in the future.

Co-authorship network of co-authors of Hannah Ritchie

This figure shows the co-authorship network connecting the top 25 collaborators of Hannah Ritchie. A scholar is included among the top collaborators of Hannah Ritchie based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hannah Ritchie. Hannah Ritchie is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ellis, Erle C., Yadvinder Malhi, Hannah Ritchie, et al.. (2025). An aspirational approach to planetary futures. Nature. 642(8069). 889–899. 4 indexed citations
2.
Charles, Hubert, Joseph Poore, & Hannah Ritchie. (2025). The changing pressures on global croplands. One Earth. 8(10). 101492–101492.
3.
Mathieu, Edouard, Hannah Ritchie, Charlie Giattino, et al.. (2024). Best practices for government agencies to publish data: lessons from COVID-19. The Lancet Public Health. 9(6). e407–e410. 1 indexed citations
4.
Charles, Hubert, Joseph Poore, & Hannah Ritchie. (2024). Opportunities to produce food from substantially less land. BMC Biology. 22(1). 138–138. 12 indexed citations
5.
Mathieu, Edouard, Hannah Ritchie, Esteban Ortiz-Ospina, et al.. (2021). Author Correction: A global database of COVID-19 vaccinations. Nature Human Behaviour. 5(7). 956–959. 22 indexed citations
6.
Mathieu, Edouard, Hannah Ritchie, Esteban Ortiz-Ospina, et al.. (2021). A global database of COVID-19 vaccinations. Nature Human Behaviour. 5(7). 947–953. 1146 indexed citations breakdown →
7.
Hasell, Joe, Edouard Mathieu, Diana Beltekian, et al.. (2020). A cross-country database of COVID-19 testing. Scientific Data. 7(1). 345–345. 359 indexed citations
8.
Ritchie, Hannah & Max Roser. (2020). Environmental impacts of food production. 72 indexed citations
9.
Stothard, Ellen R., Hannah Ritchie, Robert H. Eckel, et al.. (2020). Early Morning Food Intake as a Risk Factor for Metabolic Dysregulation. Nutrients. 12(3). 756–756. 8 indexed citations
10.
Ritchie, Hannah & Max Roser. (2020). CO₂ and Greenhouse Gas Emissions. 586 indexed citations breakdown →
11.
Ritchie, Hannah & Max Roser. (2019). Outdoor Air Pollution. 6 indexed citations
12.
Ritchie, Hannah, David Reay, & Peter Higgins. (2018). Sustainable food security in India—Domestic production and macronutrient availability. PLoS ONE. 13(3). e0193766–e0193766. 55 indexed citations
13.
Ritchie, Hannah & Max Roser. (2018). Causes of Death. 54 indexed citations
14.
Ritchie, Hannah, David Reay, & Peter Higgins. (2018). Quantifying, Projecting, and Addressing India's Hidden Hunger. Frontiers in Sustainable Food Systems. 2. 43 indexed citations
15.
Ritchie, Hannah, et al.. (2017). 3f bio : Halving the Cost of Mycoprotein Through Integrated Fermentation Processes. Industrial Biotechnology. 13(1). 29–31. 8 indexed citations
16.
Ritchie, Hannah & Max Roser. (2014). Energy Production & Changing Energy Sources. 29 indexed citations
17.
Roser, Max & Hannah Ritchie. (2013). Fertilizer and Pesticides. 9 indexed citations
18.
Roser, Max & Hannah Ritchie. (2013). Yields and Land Use in Agriculture. 14 indexed citations
19.
Roser, Max, et al.. (2013). Child and Infant Mortality. 24 indexed citations
20.
Ritchie, Hannah & Dustin J. Marshall. (2013). Fertilisation is not a new beginning: sperm environment affects offspring developmental success. Journal of Experimental Biology. 216(Pt 16). 3104–9. 33 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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