More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts warned Monday. In all, 38% of trees are at risk, ...

The mortality rate of trees in forests from Tasmania to the Top End is increasing as the world warms, according to a new study. Scientists suspect this rising death rate is part of a global trend but ...

In elementary school, most of us learned the basic differences between deciduous and coniferous trees. Deciduous trees have leaves that change color and drop in the fall, and coniferous trees have ...