Trees shift upward as climate warms, data show

The world's warming climate is forcing trees and the plant life around them into new territories where...

Stanford survey finds more doubt global warming

Although the vast majority of Americans believe the Earth is gradually warming because of greenhouse...



Armenian cave yields oldest known leather shoe

Archaeologists from UCLA and Ireland have discovered the world's oldest leather shoe, an exquisitely preserved, 5,600-year-old woman's...

Chronicle 6.10.10 4:00 AM

Heart attacks down 24% in decade, 62% for worst

A study of more than 46,000 Northern California Kaiser Permanente patients found a significant drop in heart attacks over a 10-year...

Chronicle 6.10.10 4:00 AM

4 Northern California scientists honored

Four pioneering scientists in Northern California are among eight winners of the prestigious Kavli Prizes for inventive research...

Chronicle 6.9.10 4:00 AM

Volunteers yank weeds to restore fragile trails

Purple velvet. Sow's thistle. Scotch broom. Those are no innocent wildflower names. They are noms de guerre for the mobsters of the...

Chronicle 6.6.10 4:00 AM

Report finds delta among most vulnerable rivers

The river system that makes up the backbone of the state's economy ranks as one of the most imperiled watersheds in the nation...

Chronicle 6.2.10 4:00 AM

State poised to OK supertoxic pesticide

Farmers planting strawberries and other crops in California will soon have to contend with cancer-causing poison instead of bugs...

Chronicle 6.2.10 4:00 AM

USGS' Julius Schlocker dies: axed nuclear plant

A memorial service will be held Thursday for Julius Schlocker, a retired geologist whose investigation of earthquake risks helped...

Chronicle 6.2.10 4:00 AM