Empty sky is a unique opportunity for researchers
The Corona-crisis has reduced the contrails to 90 percent. The benefits, researchers at the DLR for research flights over Europe and the Atlantic.
It is again a little full in the sky. Airlines worldwide-up your operation slowly. Sometimes they have even a higher demand than expected.
But still contrails of passenger aircraft in the sky rar. Due to the decline in air traffic decreased in April compared to the year-on-year across Europe, up to 90 percent. The German centre for air and space DLR, found out. This ongoing state of emergency, use it in the next two weeks for special research flights over Europe and the North Atlantic.