COVID-19 gives solid evidence that there is no playbook involved: in terms of political and business processes, the pandemic happened in a flash. And yet every country mismanaged the reaction in roughly the same way, for roughly the same reason. This wasn't coordinated, it's the default way we fail to solve global problems.
Unstoppable severe climate change is coming, if not already here. Emissions continue to go up and up and up every year, the best you get is a slight pause in a year, while we need emissions to go to zero, fast. At this point the only slight hope is geoengineering, and even then I wouldn't bet on it.
What is true that none of the presidential candidates is taking the crisis seriously: Trump denies it, Biden pays a bit of lip service to it but has done very little about it with Obama, and will probably not do much about it if elected.