The success of the Refreeze the Arctic Foundation initiative relies on the collaboration of two highly respected universities, uniting their expertise to work together on Marine Cloud Brightening.

Delft University of Technology, also known as TU Delft, is the oldest and largest Dutch public technical university, located in Delft, Netherlands. As of 2022 it is ranked by QS World University Rankings among the top 10 engineering and technology universities in the world.

TUDCI will use its cloud modelling expertise to develop the perfect combination of droplet size and subsequent droplet distribution, to achieve the desired brightening effect. TUDCI will do this using previously published studies and guidance from the cloud physics experts at TU Delft.

Universiteit Delft
Climate Institute,
The Netherlands (TUDCI)
Herman Russchenberg,
Pier Siebesma,
Franziska Glassmeier, Stephan de Roode,
Isabelle Steinke, and team.

The Centre for Climate Repair at Cambridge is working in affiliation with Cambridge Zero at the University of Cambridge to safeguard our planet from the disastrous effects of global warming.

CCRC will begin their work by studying the interaction with droplet generation, and to determine the best method to create smaller droplets; smaller droplets create whiter clouds. Based on these findings, CCRC will begin developing a prototype around droplet generation methods that fit the requirements of Marine Cloud Brightening.

Centre for Climate Repair at Cambridge, United Kingdom (CCRC)
Shaun Fitzgerald, Hugh Hunt,
Sir David King and team.


of Arctic sea ice
is lost per decade Science &
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climate-smart nation

The success of the RAF mission will be achieved with the smooth cooperation and collaboration of both universities. TUDCI Delft will provide CCRC with the results of their observations, cloud models and climate modelling, which will then be used to design the control system for the prototype, as well as estimating the impact of the pilot testing.

Refreezing the Arctic, were it possible, would be a huge defence against the global catastrophes currently threatened by continued global warming
Sir David Attenborough

Both institutes are
committed to expanding their teams further with PhD and post-doctorate positions.


by 2030 climate change
could be irreversible
European Commission