"It is said by civic leaders that the installation of the trees along Palm Canyon drive will do more for the appearance of the town than any other single thing in many years .." ...

Once thought resistant to invasion, regional deserts are losing native plants to aggressive weedy species like Saharan ...

Drought conditions in most of California will worsen air quality and increase airborne particulates like dust and pollen.

Meteorologists say Southern California will bear the brunt of the ... leads “to longer and more intense allergy seasons,” as trees release pollen earlier in the year and weeds persist later ...

This week, a hiker clung to a Pacific Crest Trail cliff face, awaiting rescue after the trail eroded beneath her boots.

Vazquez Rocks is a dramatic desert landscape just outside Los Angeles, known for its striking geology, outlaw legends, and countless Hollywood film appearances.

L.A.’s fragile urban canopy was dealt a vicious blow this weekend when a chainsaw-wielding vandal cut down a number of shade trees along South Grand Avenue and other areas of downtown ...