DETROIT – In spite of all the negative aspects, the pandemic has created opportunities that we can learn from. COVID-19 has created a global natural experiment that would be impossible to do in any normal situation. READ: Michigan health officials make recommendations regarding Halloween celebrationsWhat would happen to global carbon dioxide emissions if people drove less, flew less and used less power? Idled industry added 18 percent and the drop in global domestic aviation cut C02 emissions another 13 percent. Because we cannot limit human human activity the way the pandemic did, changes in energy production and use will be needed to reach emission targets.