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Environmental health and justice leaders

Agents of Change: 2021-2022 Cohort

EHN is teaming up with Columbia University Mailman School of Public Health to bring you the voices of next generation environmental justice leaders

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Peter Dykstra: Journalists I’m thankful for

My third annual list of the over-achieving and under-thanked.

Car tire chemicals are killing salmon and steelhead

The chemical 6PPD, added to tires to prevent degradation, is causing a “complete breakdown of the blood brain barrier” in fish, a new study found.

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."

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.

Frequently asked questions on the new sperm count decline study

Sperm counts are declining everywhere — the implications are huge.