Spot an orange mark on a tree? It's not just random paint. Learn what those markings mean, from federal signals to local codes, and why you pay attention.

RIVERSIDE, Calif. - Tropical trees in the Amazon Rainforest may be more drought resistant than previously thought, according to a new study by researchers at the University of California, Riverside.

Tree-ring samples taken by Paulo Quadri, who earned a Ph.D. in environmental studies from UC Santa Cruz, were included in the study. (Photo by Luz A. de Wit) The top-line findings of a massive ...

Researchers have found almost identical patterns of tree diversity across the world's tropical forests. The study of over one million trees across 1,568 locations found that just 2.2% of tree species ...

How do you cool yourself on a hot day? Perhaps you find shade, switch on a fan or retreat to air conditioning? But spare a thought for tropical forest trees. As the climate warms, they must either ...

Northeast Australia’s relict tropical rainforests, one of the oldest and most isolated rainforests in the world. Credit: Alexander Shenkin Tropical trees in Australia’s rainforests have been dying at ...