The ICAW 2025 Poster Contest will start on September 1, 2024. Please come back closer to that day to learn about the new theme chosen for 2025 and the poster contest requirements.

2024 Winning Poster

Each year, the International Compost Awareness Week Committee holds a poster contest to pick a design for the annual poster. There is always a new theme for ICAW, which is highlighted on the poster as well as that year’s dates. ICAW is always held the first full week of May. The dates for 2024 are May 5 – 11. The poster contest is open to anyone from anywhere in the world age 14 or older.

The ICAW theme for 2024 is truly a collaborative and international effort. Again this year, we teamed up with the International Compost Alliance (ICA), which includes compost associations from around the world, to select: COMPOST... Nature’s Climate Champion! The theme was chosen by participating international partners incorporating the collective focus on one of the initiatives of the United Nations Sustainable Development Goals (SDG), which is “Take urgent action to combat climate change and its impacts.”

The 2024 theme best reflects the UN goal by highlighting the role compost plays in fighting climate change. Those roles include:

  • Decreasing methane: Methane, a greenhouse gas twenty-five times as powerful as carbon dioxide, can be significantly reduced through the recycling of organics instead of their being landfilled.
  • Helping with climate change mitigation: Compost offers a significant answer to climate change mitigation. Compost’s return to the soil serves as a “carbon bank,” helping to store carbon thereby removing it from the atmosphere.
  • Reducing fertilizer inputs, reducing the pollution created to manufacture those inputs.
  • Increasing resilience: Compost helps to increase resilience to the effects of climate change such as drought and extreme weather.

Meet the ICAW 2024 Poster Contest Winner

This year’s winner of the ICAW 2024 Poster Contest is Ny Rindra Arison Malalaniaina. Out of hundreds and hundreds of entries from around the world, (entries were received from 76 different countries), her entry was chosen.

Ny Rindra lives in Antananarivo, Madagascar and is a student in chemical and industrial process engineering. Here is what she shared with us about why she entered the contest:

“Apart from my engineering studies, I am really passionate about design and drawing. I am also concerned about the environment. Your competition was an opportunity to show my commitment to planet earth. My poster was designed to promote the importance of composting and its benefits to the environment. The poster is very colorful, with a background representing nature. In the center, there is a compost bin where planet earth is located, with a champion decoration to properly mention "Nature's Climate Champion." These words indicate that composting is an important ally in the fight against climate change.”

The ICAW Committee would like to thank everyone who took the time to enter the contest and for working hard to support ICAW and the message in this year’s theme: COMPOST…Nature’s Climate Champion!

Here are the 14 top entries

For questions, please send an email to

Past Poster Winners


























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