Last winter’s flu epidemic was short and mild. And then COVID-19 arrived. The flu epidemic in the winter of 2019/2020 was mild and lasted only 5 weeks.
Climate change, ozone depletion and air quality need to be addressed coherently Ozone layer depletion, air pollution and climate change need to be addressed in connection with each other.
Risk of degradation of European ecosystems by air pollution is decreasing The number of natural areas in Europe that are threatened by air pollution will decrease between 2005 and 2020.