BOULDER, Colo. — April 26 marks Arbor Day. People around the world celebrate the holiday by planting trees. The holiday started in Nebraska in 1872. More than 1 million plants were reportedly planted ...

Sydney Hudzinski climbs in the 2023 Minnesota Society of Arboriculture's Tree Climbing Championship. She won in 2024 and is returning to compete in 2025. NINA MOINI: There's a kid in your life who ...

When Brenda Sandberg was a little girl growing up in Durham, N.H., a large maple tree separated her childhood home from the neighbor’s. The tree’s limbs were big and low, and on nice days after school ...

KENT, Ohio — When you think of science and math, you probably don’t picture dangling from a rope 30 feet in the air. But at Davey Tree’s new SEED Campus, short for Science, Employee Education and ...