sprep-pa
As the COVID-19 pandemic took hold in the first half of 2020, the lack of human activity around the world resulted in a 9% drop in the greenhouse gas emissions at the root of climate change. Almost overnight, the Himalayas became visible from a distance for the first time in years. Rivers flowed free of toxic pollutants and the air sparkled with blue skies in major cities such as New Delhi and Los Angeles.
