The good, the bad and the ugly of Covid-19

Every cloud has a silver lining. Even the darkness of the novel coronavirus pandemic, though not utterly dispelled, has let through slivers of good light. Take, for instance, the fact that many developed countries are reporting clearer skies. The carbon footprint left by industrialisation has reduced to levels unattainable by years of stringent regulation. According to studies in the US, human distancing has allowed birds to thrive.