Scientists from which institute reported that the largest hole in the Ozone layer spreading over 1 million square kilometers above the Arctic has closed due to unusual atmospheric conditions?

Scientists from which institute reported that the largest hole in the

1.	Scientists from which institute reported that the largest hole in the Ozone layer spreading over 1 million square kilometers above the Arctic has closed due to unusual atmospheric conditions?
Answer» Scientists from Copernicus European Centre for Medium-Range Weather Forecasts (ECMWF) reported that the largest hole in the Ozone layer spreading over 1 million square kilometers above the Arctic has closed due to unusual atmospheric conditions.The hole in Ozone was first identified by scientists in March 2020. The development of the hole was confirmed by Copernicus Climate Change Service (C3S) and Copernicus Atmospheric Monitoring Services (CAMS) by the European Centre for Medium-Range Weather Forecasts (ECMWF).