>>no mention of potential mitigation strategies The biggest risk is if you think of it on the very long term, staying on earth is like risking it all on stayin

>>no mention of potential mitigation strategies The biggest risk is if you think of it on the very long term, staying on earth is like risking it all on staying on one rock. There are far too many risks, and there is little you can do mitigate them on the long term. The long term solution is to invest money to build technologies to develop inter stellar travel and related technologies to settle humans outside earth. And that really wasn't that difficult to achieve. The problem is we haven't made serious attempts beyond the moon and mars missions. The funding is too limited, and there is no political consensus around the world to work towards these goals. We have become far too busy with wars, conflicts and other pointless spending on earth. While we could have used the money to do something like this. >>Can you imagine how disastrous this would be?.... It can be far more disastrous than you imagine. Loss of electricity and water are just primary effects. There are many secondary effects of these scenarios. No electricity means you can't pump out fuel. Bulk of your critical production[Food/Medicine/Sanitation etc] Will come to grinding halt because of inter dependencies. Expect mass starvation, riots, loss of law and order kind of scenarios. There will likely be powerful groups controlling critical resources required to survive. I wouldn't say its a extinction scenario. But it will come pretty close.