We previously have pointed to earth changes as being valid existential threats, while pointing out that some man-made activities such as fracking and HAARP certainly could further exacerbate some of them.
However, any one of the following human creations may send us into an irrevocable tailspin that could wipe us out before any asteroid or mega volcano arrives. We can also speculate about whether any or all of the below are the work of elite eugenicists, as some of them have indicated such intentions openly. Regardless, the fact remains that unless we can elevate our mindset to how we can more properly utilize our technological evolution instead of permit developments that threaten our survival whether mistaken or intended, we will continue careening down a very destructive current path.
TVNL Comment: The thing not mentioned in the article that should be is sex. Yes...well, sex that results in babies. Too many people is perhaps the biggest issue that overlaps all the issues in the article.