At the COP 25 in Madrid until 13 December, a booth attracts the attention of the participants: that of the United Nations, where scientists have used the maps of the American search engine Google, to show the consequences of the change climate. Cut forests, London or New York under water .... All these images are available on Google Earth.
On a modeled London map, one can choose two scenarios: increase global warming by 2 degrees or 4 degrees. As a result, the water floods the streets. "In this picture, you see Big Ben underwater," says Tasha, who is demonstrating to a group of thirties from the United States, Mexico and Italy.
Even for climate activists, between theory and image, there is always a surprise
It's even more impressive in New York: "With an increase in temperatures of 4 degrees, Wall Street is almost removed from the map.The entire financial sector is completely under water!" "I never thought that," says Jenna, amazed. "I knew it could happen in a long time but not only with 4 extra degrees, it's crazy!"
Even for these young climate activists, between theory and image, there is always a surprise. "I've been to New York and London before," says Juan. "These are cities in which we walk and there, we realize that they could become uninhabitable ... It shows the urgency." For now, the 7 most endangered coastal cities have been modeled and maps are expected to grow in the coming months.