Each of the slogans displayed on these postcards is extracted from photographs taken by Camille and Alice Leroy during the global climate strikes in New York and all around the world in 2019.

In 2020, cl design supports the Surfrider Foundation, an association that encourages citizen mobilization to protect the ocean and coastline for its users and also support the Tara Ocean Foundation, which studies the impact of climate change on our oceans.