The consequences of climate change are more visible every day, even if their media coverage accentuates the perception of the phenomenon. This is not new. At the beginning of the twentieth century, on the contrary, there were fears of a cooling that would make the Earth, like the Moon, a dead planet. This fear inspires novelists. Jules Verne proposes a Journey to the Center of the Earth and Ray Bradbury, in his Martian Chronicles, imagines that Earthlings will have to emigrate to Mars to survive. Soon after, there were concerns about the presence of unidentified flying objects in the sky ...