Flashing traffic lights, downed trees and other traffic impediments are a nuisance and many factors determine how cities and police departments handle them -- or not.

Leaves typically start to peak in northern states by early October, but projecting peak foliage isn't an exact science. Here ...

A new study has found the rainforest’s largest trees are thriving, and continue to play a major role in mitigating the impacts of climate change.

There has been widespread concern that some native California oaks were not regenerating adequately. Three California oak ...

While there is evidence that blue oaks can start to grow from a cut stump, little is known about the details of sprouting. For instance, it is not known if the ability of blue oaks to sprout is ...