Arbor Day volunteers planted new trees across the country Friday — much as they’ve done for the past 150 years — but ...

The Bay Area is about to enter a period of minor heat risk after a cold and rainy weekend, but forecasters say the light ...

After the fall of Saigon to Communist forces on April 30, 1975, an event now known as Tháng Tư Đen or Black April, more than ...

Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

A new survey showed that in almost every large American city, it is cheaper to rent than to buy a home. But nowhere is the ...