Northern Arizona is famous for its aspen trees, and a multi-decade study looks into how they’re being affected by climate ...

Pando is an ancient quaking aspen tree (Populus tremuloides ... Utah's Fishlake National Forest are chomping off the tops of saplings and killing new growth quicker than the plant can compensate ...

Ruth Essex Aspen seedlings are cultivated in a nursery and ... much of the open prison's normal day-release work. The tree growing was part of a nature area where they can meet their families ...