The covid-19 pandemic has changed the world, grinding to a halt increasingly large geographic areas and portions of the economy in an effort to slow the virus’ spread. The impacts have been profound on the ground, but government-mandated lockdowns have also remade the atmosphere. Satellite data from China, the first epicenter of the outbreak, and Italy, the second hot spot, have shown big drops in pollution following lockdowns that limited the movement of people and goods and factories’ ability to produce stuff. With the pandemic now becoming increasingly prevalent in the U.S., Americans...…The covid-19 pandemic has changed the world, grinding to a halt increasingly large geographic areas and portions of the economy in an effort to slow the virus’ spread. The impacts have been profound on the ground, but government-mandated lockdowns have also remade the atmosphere. Satellite data from China, the first epicenter of the outbreak, and Italy, the second hot spot, have shown big drops in pollution following lockdowns that limited the movement of people and goods and factories’ ability to produce stuff. With the pandemic now becoming increasingly prevalent in the U.S., Americans...WW…