Hana Dethlefsen

Hana Dethlefsen is Senior Galleries Development Lead at the Natural History Museum in London, where she works with cross-disciplinary teams to deliver new permanent galleries and gallery refreshes that inspire visitors to become advocates for the planet.

Hana Dethlefsen will be speaking at the Green Museums Summit 2025 :

Fixing Our Broken Planet: Building an ecosystem of positive change

In 2020, the Natural History Museum declared a planetary emergency and shifted the focus of its work to a new mission: creating advocates for the planet.

Its newest gallery, opening in Spring 2025, embodies this new mission and aims to build an ecosystem of people who will work to understand and champion the need for change. Built not only to inspire positive environmental action, it has also been built with sustainability at the forefront.

Hear how the museum has developed some key principles to build wisely, measure their impact, and how they plan to use this information in the future.