汉娜·瑞奇

汉娜·里奇（英语：Hannah Ritchie，1993年—）是一名苏格兰数据科学家，牛津大学牛津马丁学院高级研究员，也是“Our World in Data”的研究负责人。她的研究涉及全球粮食系统评估和COVID-19疫情数据可视化。

她出版了两本书，分别是2024年的《这世界有点糟，但还有救！》（Not the End of the World）以及2025年的《Clearing the Air》。

早年生活和教育

里奇曾在爱丁堡大学接受环境科学训练。她获得环境地球科学本科学位和碳管理硕士学位。她留在苏格兰攻读博士学位，研究营养不良和全球粮食系统。 她创建了一个可扩展的框架，以了解粮食系统的路径，并确定损失、分配和转换。特别是，她希望了解是否有可能在不破坏环境的情况下养活不断增长的人口。

职业生涯

里奇的职业生涯始于在爱丁堡大学担任永续发展讲师。她制定了以永续发展为重点的教学计划。 离开爱丁堡大学后，她开始在牛津大学从事研究工作，在那里她开发了数据可视化来传播消息。

里奇的早期工作考虑的是粮食系统，以及如何调整粮食系统以实现永续发展目标。例如，她认为对于大多数粮食而言，运输几乎不会对碳足迹产生影响。2017年，里奇加入“Our World in Data”，担任研究主管。在COVID-19疫情期间，里奇建立了Our World in Data COVID-19信息仪表板。

Hannah Ritchie (born 1993) is a Scottish data scientist who is a senior researcher at the University of Oxford in the Oxford Martin School, and deputy editor at Our World in Data. Her work focuses on sustainability, in relation to climate change, energy, food and agriculture, biodiversity, air pollution, deforestation, and public health.

She has published two books, Not the End of the World in 2024 and Clearing the Air in 2025.

Early life and education

Hannah Ritchie was born in 1993 in Falkirk, Scotland, United Kingdom. She trained in environmental science at the University of Edinburgh. She earned her undergraduate degree in environmental geoscience and a master's degree in carbon management.

She remained in Scotland for her PhD, researching malnutrition and global food systems. She created a scalable framework to understand food system pathways and identify losses, allocations, and conversions. In particular, she looked to understand whether it was possible to feed a growing population without damaging the environment. Ritchie is vegan.

Research

Ritchie started her career as a lecturer in sustainability at the University of Edinburgh. She developed teaching programs focused on sustainability. She left Edinburgh to start a research position at the University of Oxford, where she developed data visualisations to communicate information.

Ritchie's early work considered food systems and how it was essential to adapt to meet the Sustainable Development Goals. For example, she has argued that for most foods, the carbon footprint is barely impacted by transport.

In 2017, Ritchie joined Our World in Data as Head of Research. Her work focuses on environmental sustainability, including topics such as climate change, energy, food and agriculture, biodiversity, air pollution, and deforestation. During the COVID-19 pandemic, she built the Our World in Data COVID-19 information dashboard. In 2023 she became Deputy Editor and Lead Researcher.

In 2024, she was elected to Scotland's Just Transition Commission, "an independent advisory body that provides scrutiny and advice on how to deliver a just transition to a low-carbon economy in Scotland".

In 2024, Chatto & Windus published Ritchie's first book, Not the End of the World, which explores her optimism for large-scale problem-solving and ending climate change.

In 2025, Ritchie published a second book, titled Clearing the Air.

She also authors a newsletter titled "Sustainability by numbers", with over 60,000 subscribers.

Recognition

In 2022 Ritchie was named Scotland's Youth Climate Champion at the Holyrood Green Giant Awards in recognition of her contributions to the climate-change movement. In 2024, Ritchie was recognised for lifetime achievement with honorary fellowship of the Royal Statistical Society.

In 2025, she received the honorary award "Inspiration from Abroad" from the jury of the Climate Change Communication Award, presented by the United Nations Information Center in Prague and the Learned Society of the Czech Republic.

Selected publications

Books

Ritchie, Hannah (2024). Not the End of the World: How We Can Be the First Generation to Build a Sustainable Planet. Chatto & Windus. ISBN 9781784745004.

Ritchie, Hannah (2025). Clearing the Air: A Hopeful Guide to Solving Climate Change — in 50 Questions and Answers. Chatto & Windus. ISBN 9781784745745.

Articles

Roser, Max; Ritchie, Hannah; Ortiz-Ospina, Esteban; Rodés-Guirao, Lucas (9 May 2013). "World Population Growth". Our World in Data.

Ritchie, Hannah; Roser, Max; Rosado, Pablo (11 May 2020). "CO₂ and Greenhouse Gas Emissions". Our World in Data.

Ritchie, Hannah (January 2024). "What We Learned from Acid Rain: By working together, the nations of the world can solve climate change". Scientific American. 330 (1): 75–76.