The carbon dioxide emissions from 10 of Portugal’s most polluting industrial infrastructures fell 28% in 2019 and 2020. This is the conclusion of environmentalists at ZERO after studying data compiled by researchers from Aveiro University. As Expresso puts it today: “These are the two ironies of the pandemic: we have never been so preoccupied with what we breathe, with the inhalation of droplets because of the new coronavirus, but at the same time, the quality of the air has never been so good: if the slowing down of tourism has created a hole in the economy and employment in Portugal, it has also contributed to reducing atmospheric pollution” which causes “around 6,000 deaths per year”.