On the narrow isthmus of Panama, scientists discovered adding nitrogen to the soil doubled tree growth, providing new insights into forest restoration.

Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals across years.

Answer: It is a miracle, isn’t it? A small seed can grow into a mighty oak tree. That tiny seed has all the genetic code, directions, and information to become an exquisite tree with its roots, trunk ...

Los Angeles has some of the strictest tree planting rules in the nation. These policies limit tree growth, worsen shade disparities and don't improve safety, researchers found. When researchers ...