So far, only supervillains in science fiction films use lasers to establish control over the planet's climate. However, scientists have proven that all this is quite real. Using laser technology, they found a way to modify ice crystals in the upper atmosphere to reflect sunlight.
Those familiar with meteorology know that at an altitude of 6 to 12 km, ice crystals form cirrus clouds that affect the reflectivity of our planet. A team of scientists from the University of Geneva has recreated atmospheric ice-forming conditions in a laboratory. They managed to create tiny ice crystals 90 micrometers in diameter.
When hit by a laser beam, they explode to form tiny balls of plasma, causing the ice to evaporate. The vapors, in turn, generate a shock wave that breaks the crystals into even smaller fragments.
At the scale of the Earth's atmosphere, this will lead to the formation of huge masses of tiny ice dust, which will reflect sunlight back into space, preventing the Earth from overheating.
The researchers believe that this method can be used to increase the Earth's reflectivity (albedo index) in the upper atmosphere, thereby regulating the planet's climate.