Grace van Deelen

Top Story

A new analysis shows a “crisis” of male reproductive health

Global average sperm count is declining at a quicker pace than previously known, chemical exposure is a suspected culprit.

For years, scientists across the world have gathered evidence showing declines in sperm quality. Now, new research compiling the results of those studies has found that sperm count has dropped dramatically around the world, and the rate of decline is accelerating.

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Top Story

Using comedy to combat climate change

A car pulls up to a street corner, and a young, bearded man hops in the passenger seat, only to come face to face with a weathered and bald future version of himself.

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fish endocrine disruption
Top Story

Together, toxics and climate change hinder fish growth

In biology, there is a rule of thumb that upholds food webs: the 10% rule, meaning animals are generally good at converting energy from their food into body weight at a rate of about 10%.

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WATCH: The latest evidence of widespread sperm count decline

WATCH: The latest evidence of widespread sperm count decline

"Pregnant women, and men planning to conceive a pregnancy, have a responsibility to protect the reproductive health of the offspring they are creating."

sperm count decline

Frequently asked questions on the new sperm count decline study

Sperm counts are declining everywhere — the implications are huge.

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