On April 22, Earth Day 2020 will mark the 50th anniversary of the world’s largest environmental movement, and the American Chemical Society (ACS) is a proud partner for this milestone event.

The Great Global Cleanup

Postponed to Fall, 2020

World Clean Up Day is September 19th

Please stay safe in your communities!

Chemists Celebrate Earth Week 2020

“Protecting Our Planet Through Chemistry”

The California Section is sponsoring a digital Illustrated Poem Contest for students in kindergarten through 12th grade.

Contest rules hereEntry Form here.
Contest Deadline: Monday May 4th, 2020
Prizes: $50 gift certificate to ACS On-line Store
Contact: Sushila.Kanodia@gmail.com/510-351-9922 (section office)
2950 Merced St #225, San Leandro, CA 94577
Winners of California Local Section’s Illustrated Poem Contest will advance to the National Illustrated Poem Contest for a chance to be featured on the ACS website and win prizes!

Cal ACS at the Korematsu Middle School Science Fair – 06 February 2020

Cal ACS Volunteers at the Glorietta Elementary School (Orinda, CA) Science Fair – March 4th, 2020

Celebration of Earth Day and John Muir’s Birthday – CANCELED

The annual celebration scheduled for Saturday, April 18th 2020 has been canceled so that our communities can cope with the Coronavirus.

ACS has resources available for hands-on activities that you can do at home!  Our Earth Week 2020 theme is Protecting Our Planet Through Chemistry .  You can read/download Celebrating Chemistry (in English and Spanish) and then share your photos and stories on our Facebook page.

Access additional education resources, including free Earth Week related video content:


Past Earth Week Celebrations:

Earth Week 2019