Species come and species go. That, by definition, is what Nature is all about. Nature can be brutal at times, mostly gentle at others but over the course of the last couple of years and no doubt in the future we are seeing her flex her muscles. Man can fight her all he likes but Nature will win. She always does.
Trillions of monies have been spent on fighting this most natural of sequences of events. Money wasted. But onwards the worlds great thinkers (tinkerers) go trying to work one over on Nature. It is all doomed to abject failure but that will not stop them wasting evermore money in their quest for absolute Human power over Nature.
Mirrors in space, iron filings dropped into the worlds oceans are two such of their ideas. As the Earth slowly, wearily, cycles through its seasons in times long since past cataclysmic events have befallen not only Man but other predominant species of those ancient times curtailing their existence to the annals of history. In more recent times (10 of thousands of years) temperatures have risen and temperatures have fallen but Man has always survived. Perhaps what is due to come will be the end of Man as the dominant species. Is that something to be so scared of that we enable these tinkerers to do yet more damage to our fragile planet in their efforts to keep Man on top of the food chain?
To my mind no. They are simply stalling the obvious. The Earth moves in cycles and the time is coming when Man's very survival depends not on his will to survive but by Natures say so. Some would claim that by trying to stall the inevitable we are showing a will to survive Natures onslaught. To that I say no, that is not correct. What Man is doing will simply drive Natures desire to rid herself of Man's interference on every known species, and natural resources we have plundered, on this Earth.
Man has slowly all but destroyed this planet with its insatiable desire to be top dog and with Man's tinkering to stave off the inevitable Nature will ensure, no matter what Man tries to do about it that we die off. If not completely then with severely limited numbers left. So few that Man will struggle.
"The weak shall inherit the Earth". And we all know that "only the strong survive".