International Day of Forests

History & origins

International Day of Forests is listed in this site's 2026 calendar for March 21. Informal "national days" are often promoted by communities, trade groups, and brands; origins and official proclamations vary by country and year. Celebrate the vital role of forests in sustaining life on Earth on International Day of Forests! Forests provide clean air, water, biodiversity, and countless resources. Because many such observances are cultural or promotional rather than statutory, treat dates as a planning guide and confirm local events separately.

Why it matters

Observing International Day of Forests gives people a shared anchor to explore international themes—forests, environment, March, conservation, trees—and to coordinate learning, gatherings, or giving around that focus. Celebrate the vital role of forests in sustaining life on Earth on International Day of Forests! Forests provide clean air, water, biodiversity, and countless resources. Learn about forest conservation, support reforestation efforts, and discover how forests contribute to climate regulation and human well-being.

How to celebrate

Learn about forest conservation and the importance of trees. Support organizations working to protect and restore forests. Plant trees in your community or support reforestation projects. Reduce paper consumption and choose sustainable wood products. Visit a forest or nature preserve. Share information about forest conservation on social media.

Facts

• Forests cover about 31% of the Earth's land surface
• Forests are home to 80% of the world's terrestrial biodiversity
• Trees absorb carbon dioxide and produce oxygen
• Deforestation contributes significantly to climate change
• One mature tree can absorb up to 48 pounds of CO2 per year

Upcoming dates

• Saturday, March 21, 2026
• Sunday, March 21, 2027
• Tuesday, March 21, 2028
• Wednesday, March 21, 2029
• Thursday, March 21, 2030