20 Years of Amplifying Science & Partnering for Health

We envision a world free from environmental risks that harm our health.

CHE cultivates a learning community based on the latest, peer-reviewed science to share knowledge and resources and to improve individual and collective health.


Hear the latest environmental health science

Generation Chemical

Explore the impact of toxics on reproductive health & development

A Story of Health

Learn about disease origins and prevention for health care providers

Toxicant and Disease Database

Explore the links between chemicals and human diseases

Upcoming Webinars

PFAS Health Effects: National Academy of Sciences, Engineering, and Medicine’s Recommendations for At-Risk Populations

November 30, 2022 —   Per- and polyfluoroalkyl substances (PFAS) are chemicals that are widely used in consumer products, industrial firefighting foams used on military bases and airports, and can be found in drinking water . . .

CHE Café: What’s Next in Environmental Health?

December 2, 2022 —   To mark the 20th anniversary of the Collaborative on Health and the Environment (CHE), we’re hosting a series of informal, online conversations with leading thinkers, researchers and innovators in the . . .

Embryonic BPA Exposure Causes Liver Disease in Generations of Fish

December 8, 2022 —   In this webinar, Sourav Chakraborty of the University of North Carolina Greensboro will discuss his new publication, Ancestral BPA Exposure Caused Defects in the Liver of Medaka for Four Generations. Bisphenol . . .

More webinars


What’s New

Celebrating CHE’s Legacy & Future

Nov 21, 2022— Last Saturday afternoon, longtime environmental health leaders gathered in the Commonweal gallery in Bolinas, California to celebrate the 20th anniversary of the Collaborative on Health and the Environment (CHE). 

What an amazing roomful of people.  . . .

Two Decades of Progress in Environmental Health & Science Communication

Nov 10, 2022— After Theo Colborn, Dianne Dumanoski and I published Our Stolen Future in 1996, we got “slapped” by one of the most prominent science journalists of the day, Gina Kolata writing for the New York Times. Among her criticisms was that one chemical can’t cause a plethora of diseases.  It was one chemical, one disease, like asbestos and mesothelioma.  . . .

Generation X-Y-Z: Bridging the Gap Between Then and Now

Nov 01, 2022— My passion for environmental health and justice took hold twenty years ago in college at the University of California, Berkeley, where I learned of the disproportionate health problems faced by communities that have been historically marginalized — many of which included low-income residents, immigrants, black, indigenous, or people of color.  . . .

Our CHE Team is Growing!

Oct 31, 2022— One of the many things I’ve been focusing on as I get my feet on the ground here at CHE is building a strong team to move our work forward into the next 20 years. I’m very excited to announce that Dr. Rachel Massey will be joining us next month as our Senior Science and Policy Advisor.  . . .

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