Scientists say that catastrophic sperm count drop "may lead to human extinction"! Thoughts?

SinghSong
Dpctors warn that humans could become extinct if sperm counts in men across the Western World continue to fall at current rates, with sperm counts among men from these areas having halved in less than 40 years. Lead researcher Dr Hagai Levine said he was "very worried" about what might happen in the future. "If we will not change the ways that we are living and the environment and the chemicals that we are exposed to, I am very worried about what will happen in the future," he warned. "Eventually we may have a problem, and with reproduction in general, and it may be the extinction of the human species."

The assessment brings together the results of 185 studies between 1973 and 2011, and is one of the largest ever undertaken. Scientists not involved in the study have praised the quality of the research, but are still sceptical of its findings and conclusions. Dr Levine, from the Hebrew University of Jerusalem, found a 52.4% decline in sperm concentration, and a 59.3% decline in total sperm count in men from North America, Europe, Australia and New Zealand. The study also indicates the rate of decline among men living in these regions is continuing, and possibly even increasing. In contrast, no significant decline was seen in South America, Asia, Africa or the Middle East, though researchers point out that far fewer studies have been conducted in these regions.

Many previous studies have indicated similar sharp declines in sperm count in Western society, but sceptics argued that a large proportion of them were flawed. However, the researchers claim to have accounted for these deficiencies, leaving less room for scepticism. There is no clear evidence for the reason for this apparent decrease, though there's much speculation as to the cause; Dr Levine says there's an urgent need to find out why sperm counts are decreasing, and to find ways of reversing the trend. So, what do you make of this, and what you think might be the cause of this catastrophic decline?
Scientists say that catastrophic sperm count drop "may lead to human extinction"! Thoughts?
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