Gigi Burris millinery SS15 look book
•
0 likes•417 views
The document discusses the results of a study on the impact of COVID-19 lockdowns on air pollution levels. Researchers analyzed data from dozens of countries and found that lockdowns led to an average decline of nearly 30% in nitrogen dioxide levels across major cities. However, they also observed that the reductions were temporary and air pollution rebounded once restrictions began lifting and activity levels increased again.
