
"For the Flag Project’s third annual iteration, Rockefeller Center collaborated with the United Nations Environment Programme (UNEP) and the Climate Museum, asking the public to submit flag designs that represent this year’s World Environment Day theme, “Only One Earth.”
On Sunday the Climate Museum is offering a day of family activities to coincide with Earth Day and the Flag Art.
https://climatemuseum.org/2022-events/2022/4/22/earth-day-initiatives