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.She focuses on the long-term changes in the environment – energy, pollution, agriculture, food supply – and their compatibility with global development. Hannah completed her Ph.D. in GeoSciences at the University of Edinburgh.She is a researcher at the Oxford Martin Programme in Global Development, and an honorary fellow at the University of Edinbu...| Our World in Data
All the visualizations, data, and articles produced by Our World in Data are free for you to take and use — no permission required. You just need to provide credit to Our World in Data. This part of our work is licensed under a very permissive ‘Creative Commons’ (CC) license: the CC-BY license (the BY stands for ‘by attribution’).| Our World in Data
Fossil fuels were key to industrialization and rising prosperity, but their impact on health and the climate means that we should transition away from them.| Our World in Data
This data review presents published estimates of the global death toll from air pollution and provides the context that makes them understandable.| Our World in Data
In most places, power from new renewables is now cheaper than new fossil fuels.| Our World in Data