# How will air quality, weather and climate improve because of the containment, social distancing and lockdown during the COVID-19 outbreak?

The actions taken to contain the corona-virus epidemic is closing any form of human activities in the world. Schools are closed in most cities of the world, people are told to stay at home and it seems industries are also partially closed. So, chemical emissions from industries and cars will lower significantly. How does this affect the air quality, weather and climate?

• For climate see this related question: $\mathrm{CO_2}$ concentration in particular will not decline rapidly as a result of this. – tfb Mar 23 at 15:12