'By the end of this century, the global population could begin to decline unavoidably - Gee Henry', a paleontologist and editor in the journal Nature, told Scientific American. They don't shy away from using 'extinction' word for humans.
'I suspect that the human population is set not only to shrink but also to decline, and it may soon be on the verge of collapse,' he wrote.
Henry Gee defines a lack of genetic variation, falling birth rates, pollution and stress caused by living in overcrowded cities as indicators of the disaster.
'The deadliest threat to mankind is something called the debt of extinction' Gee explained. He say - there comes a time in the progress of any species when it begins to become extinct, no matter how rich it is and no matter what they can do to prevent their extinction'.
"The species most at risk are those that dominate particular habitat patches at the expense of others, who tend to migrate elsewhere, and are therefore spread more thinly," Gee posited.
"Humans occupy more or less the whole planet, and with our sequestration of a large wedge of the productivity of this planetwide habitat patch, we are dominant within it."
In other words, our actions will eventually catch up with us. That means humanity might "already be a dead species walking," Gee argued. To the researcher, our population is far more likely to collapse, not just shrink.
The signs are already there for those willing to see them," Gee wrote. "The real question is 'How fast?'"
Read more - Humans are Doomed to Go Extinct (Scientific American)