I am no seer to say what will happen in the next decades, but many of the cited examples, especially those from 50 years ago, are not to do with climate change,

I am no seer to say what will happen in the next decades, but many of the cited examples, especially those from 50 years ago, are not to do with climate change, but rather with other pollution issues that, had we not acted strongly 50 years ago to curb pollution via regulation (significant expansion of Clean Air & Water Acts, Endangered Species Act, and others), may well have seen the catastrophic predictions borne to fruition. So, I would be very wary of taking out-of-context 50-year-old quotes as evidence that the warnings from the scientists of today amount to mere 'climate alarmism'. Some background on those old predictions: https://www.smithsonianmag.com/science-nature/why-didnt-first-earth-days-predictions-come-true-its-complicated-180958820/ https://www.smithsonianmag.com/science-nature/why-didnt-firs...