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This is Heïdi

Heïdi is a Glaciologist who led the first ever carbon-neutral science expedition in the Arctic, in April 2021. Together with five other climate scientists, she collected invaluable information on black carbon particles, which could be a key in stopping glaciers from further melting and sea levels from rising. She advises governments all over the world on questions regarding glaciers and climate change and is also researching tropical glaciers.

With your help

Heïdi will not only be able to complete her groundbreaking research but also further educate politicians to take vital decisions to stop global warming.

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Climate Sentinels

Heïdi Sevestre

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Why care

Currently, 99.9 % of all glaciers are melting, contributing to a significant threat – sea level rise. Over 700 million people will be directly affected by this. Indirectly, massive streams of refugees will increase population density, diseases and conflict dramatically.

Heïdi Sevestre [object Object],[object Object]

The work

Heïdi is a Glaciologist and part of the female scientist group Climate Sentinels.

  • Heïdi and the other members of Climate Sentinels conducted the first ever carbon-neutral modern science expedition, in April 2021.

  • She gathers data on Arctic pollution by collecting snow and ice samples. Measures the concentration of fine particles to further understand the urgency and composition of atmospheric pollution.

  • Works to spread awareness to communities to put pressure on politicians.


  • Has completed numerous community outreach programs with schools and universities in Sweden, Norway, France and the US to educate students on the impact of climate change.

  • Has been a part of various expeditions and worked in Svalbard, the Himalayas, Greenland, Colombia and the Larsen C ice shelf in Antarctica.

  • Conducted the first ever carbon-neutral modern science expedition in the Arctic, in April 2021.

  • Has worked with students to build sensors for the expedition and empowered them to take action.

  • Is the host of “Extreme Earth” for French TV, France 5.

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SDG 13 Climate Action

The mission

Heïdi is on a mission to track where the air pollution that darkens Arctic glaciers comes from so that we can stop in at the source and stop glaciers from further melting.

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