Smiling Sun

"[1] Over 20 million Smiling Sun badges have been produced in over 60 languages,[2] such as Danish, Korean, Swedish, English, Arabic, Hebrew, Norwegian, and Russian.

the logo has been playing a prominent role once again to raise awareness and funding for anti-nuclear groups, especially in Germany, Austria and Switzerland where opposition is growing to plans for extending the operation of old nuclear reactors and constructing new ones.

and providing a concise answer, "No Thanks", the logo was intended to express dissent and—by questioning nuclear power—to stimulate dialogue.

[2] In 1983, a mural of the Smiling Sun was painted near the crossing of Vestergade and Emil Vetts Passage in Aarhus, near the location where it was originally designed by Lund.

The Green Party Taiwan and the Maltese Democratic Alternative used the smiling sun symbol in the past too.

A network of pro-nuclear physicists, software developers, and environmental activists drew inspiration from the original anti-nuclear logo, but viewed nuclear power as part of a sustainable and environmentally-friendly energy option into the 21st century, and devised a similar image—with a pro-nuclear connotation—as part of an ongoing effort that originated in 2008.

Yes Please" movement have made arguments that nuclear power should be regulated and safely conducted, but not outright banned, arguing that "the overwhelming priority for those who make decisions about energy must be to avert climate breakdown.