ACS is committed to helping combat the global COVID-19 pandemic with initiatives and free resources. Learn More

CCEW Themes

The American Chemical Society began celebrating Earth Day in 2003. Since 2003, the Committee on Community Activities has chosen an annual theme to give direction and variety to that year’s celebration, but archived materials can be of use during any time of year. In 2018, the program became Chemists Celebrate Earth Week (CCEW) and will be celebrated annually during the week of April 22.

Chemists Celebrate Earth Day 2019 will be celebrated April 21-27, with the theme "Take Note: The Chemistry of Paper."

CCEW logo
Year Dates Topic Theme Name - Main Focus
2020 April 19-25 Sustainability Protecting Our Planet Through Chemistry
CCEW 2020 celebrates the 50th anniversary of Earth Day.
2019 April 21-27 Paper Take Note: The Chemistry of Paper
CCEW 2019 discusses the chemistry of paper.
2018 April 22-28 Oceans Dive into Marine Chemistry
CCEW 2018 explored the chemistry of the ocean.
2017 April 22 Agriculture Chemistry Helps Feed the World
CCED 2017 examined the chemistry of fertilizers and grains.
2016 April 22 Indoor Air The Great Indoors—Your  Home's Ecosystem
CCED 2016 covered indoor air, mold, water, and indoor plants.
2015 April 22 Atmosphere Climate Science—More Than Just A Weather Report!
CCED 2015 explored climate science and the role chemistry plays in the environment.
2014 April 22 Water  The Wonders of Water
CCED 2014 explored the unique properties of water that are crucial for life and a cleaner environment.
2013 April 22 "Best of" All Topics Our Earth: Handle with Care!
CCED 2013 incorporated the "best of" all areas from past CCED years (recycling, energy, soil/plants, air, water).
2012 April 22 Recycling Rethinking Recycling—It’s Easy to Be Green!
CCED 2012 focused on the three R's: Reduce, Reuse and Recycle.
2011 April 22 Alternative Energy Energy—It’s Everywhere!
CCED 2011 examined viable, alternative energy sources as a key aspect of sustainability.
2010 April 22 Plants & Soil Plants—The Green Machines!
CCED 2010 covered the chemistry of and uses of plants.
2009 April 22 Atmosphere Air—The Sky is the Limit
CCED 2009 informed the public about ways to reduce one’s carbon emissions and thus human’s environmental impact on the planet.
2008 April 22 Water Streaming Chemistry
CCED 2008 investigated the Earth’s water supply and how we can better sustain it.
2007 April 22 Recycling Recycling—Chemistry Can!
CCED 2007 highlighted recyclable materials, how materials are sorted and ways to reduce, reuse and recycle.
2006 April 22 Plants & Soil Dig It!
CCED 2006 explored the layers of the soil, movement of soil and erosion as well as movement of water and nutrients from the soil to plants.
2005 April 22 Atmosphere Air—Here, There, Everywhere
CCED 2005 looked at the different types of clouds, their chemical make-up, and their role in the water cycle.
2004 April 22 Water What Do You Know About H2O?
CCED 2004 discussed water chemistry with an emphasis on the pH of water and other common substances, including rainwater from the local area.
2003 April 22 Trees Chemis—TREE
CCED 2003 emphasized the important role trees play in cleaning our air, as well as the effects acid rain can have on trees in a particular area.