
International Compost Awareness Week (ICAW) is celebrated annually during the first full week of May and is a time to learn more about composting organic wastes (e.g., landscape wastes and food scraps) as part of fostering healthier soil and reducing greenhouse gas (GHG) emissions. A theme is chosen for ICAW in the US each year, and the theme becomes the focus of a poster contest, in which artists age 14 and older from around the world compete. The image above is the winning design for 2026, created by Endurance Oye of Mowe, Ogun State, Nigeria.
This year’s theme is “Compost! Feed the Soil that Feeds Us.”As explained on the Compost Research & Education Foundation website, “Soil is the foundation of life. It grows the food we eat, filters the water we drink, and sustains the biodiversity that keeps our ecosystems in balance. Yet soil is also one of our most threatened resources, with erosion, top soil & nutrient depletion, and contamination endangering its health worldwide. Compost provides the simplest and most efficient means to maintaining and rebuilding soil organic matter, arguably humanity’s most important form of natural capital. Used effectively, compost can manage storm water, remove pollutants, make agricultural soils more resilient, reduce the use of chemical fertilizers and pesticides, and remediate contaminated soils.”
- Composting reduces methane emissions through aerobic managed decomposition, providing for a more sustainable community.
- Composting lowers greenhouse gases by improving carbon sequestration in the soil. Getting the carbon back into the soil serves as a “carbon bank,” helping to store carbon thereby removing it from the atmosphere.
- Compost provides essential nutrients for plants, promoting vibrant gardens and farms. Healthier soil leads to healthier, more nutritious food for our communities.
- Compost use increases the water-holding capacity of our soils. This is important as our communities are more and more often seeing drought and or intense rain events causing soil runoff and erosion.
- Community Gardens and Green Spaces: Compost plays a vital role in community gardens, fostering green spaces that provide fresh produce, recreational opportunities, and community gathering places.
To see a full list of in-person and virtual events scheduled for ICAW in Illinois, and find registration information for those that are virtual, check out the IFSCC ICAW 2026 page at https://illinoiscomposts.org/international-compost-awareness-week-icaw-2026/.
If you’re interested in hosting your own ICAW event, check out the IFSCC’s ICAW Host Toolkit, which includes:
- tabling signage,
- resources for libraries,
- a list of relevant children’s books,
- resources for park districts,
- social media resources,
- activities for kids,
- a guide for hosting a “compost giveback” event (aka a “compost giveaway” or a “bring your own bucket” event),
- a link to a spreadsheet of food scrap municipal composting programs and drop-off locations, and
- a link to IFSCC’s guide for where to buy finished compost in IL. (Note that this only includes IFSCC member organizations that are compost manufacturing facilities. If you don’t see a site near you, do an Internet search or consult your county solid waste agency or recycling coordinator for guidance.)
If you’d like to learn more about how to start composting at home, see https://illinoiscomposts.org/composting-at-home/. You can also check out resources from Illinois Extension at https://extension.illinois.edu/composting.
Happy composting!














