To achieve all that inter shortest possible time, there is only one thing that could solve the problem.....inflict a global pandemic on the entire human race. Isolate every member of every nation. Lockdown everything! Would this have the desired effect of reducing pollution at a stroke, bring global warming to a gradual to stop? Certainly that would work, but for how long? Unbelievable and unpleasant as it undoubtedly is, to see it from this view point, you only have to look at the photographs of polluted cities before and after the lockdown to see the impressive reduction in pollution and the improvement in the air quality. This won’t make the problem of pollution go away, but it is to be hoped that the onslaught of deaths due to the pandemic and the effect on the survivors, will galvanise those who have the power to do something, will take the necessary action required to maintain the advantages demonstrated by them.