four women using their hands to spell out "P-L-T"

50 Years of Project Learning Tree: Growing Together, Looking Forward

As we celebrate this milestone, one thing is abundantly clear: PLT’s greatest strength has always been its people. We all play different roles in building the world we want.

PLT’s story has never been about a single organization or resource. It is a story of people learning from one another, sharing what works, and building something greater together. These 50 years belong to all of us.

2023 U.S. Capitol Christmas Tree

Celebrate the Holidays with the U.S. Capitol Christmas Tree

While you may not be thinking about the holiday season yet, the USDA Forest Service has been thinking about it for quite some time! This year’s 2026 U.S. Capitol Christmas Tree is a majestic Englemann spruce and it is making its way to Washington, D.C. from Idaho.

look up at a tall tree

Sustainably Managed Forests & Wildlife Conservation

Sustainable forest management and conservation are critical to the health of forest ecosystems, especially when forests are home to 80% of the world’s terrestrial biodiversity. This Wildlife Conservation Day, take time to explore the benefits of keeping forests healthy.

green schools conference

See You at the 2026 Green Schools Conference!

PLT is headed to the Green Schools Conference this February 17-19 in San Diego, California! The annual Green Schools Conference (GSC) brings together everyone involved in creating and advocating for green schools, with a focus on those leading their schools and school systems toward whole-school sustainability. We’re excited to be back in person and learning about the newest trends and innovations in providing healthy, sustainable learning environments and education for students, teachers, and school communities.

Spurge Hawk-moth

Everything is Here for a Reason – Celebrating Biodiversity

Did you know that forests contain the world’s largest reservoir of plant and animal species on land, serving as home to 80% of the world’s terrestrial biodiversity? Pretty incredible. That’s just one of the many reasons we love forests! Let’s celebrate the variety of trees, other plants, fungi and countless animals, from bears to beetles, that contribute to our biodiverse planet.

Recommended Summer Reading for Forest Lovers

As the days stay sunny for longer, summer can be the perfect time for kids and adults to relax under their favorite tree and catch up on their reading lists. Explore some of our favorite all-ages books about forests and trees to connect with the natural world!

Celebrating International Day of Forests & World Water Day

Have you ever stopped to think about how much you rely on forests? What about water? These natural resources support our everyday lives in so many ways. Check out these fun activities to celebrate International Day of Forests and World Water Day!

earth day 2025

Earth Day 2025

Earth Day is April 22, 2025 and the theme is Our Power, Our Planet. To celebrate, we’ve compiled stories and resources to help educators and youth learn about sustainability issues, climate science, and actions they can take this #EarthDay2025 and every day.