State of emergency declared in storm-battered California

Excessive rain, heavy snow and landslides are expected to wallop California through Thursday as a series of winter storms rip across the western US coast, prompting the Golden State's governor to declare a state of emergency.

Experts explain slowing ocean currents

For decades, oceanographers have been measuring the Atlantic Meridional Overturning Circulation (AMOC), a large system of ocean currents that greatly influence Earth's climate. In recent years, the data show it is weakening. ...

Air pollution 'silent killer' in African cities: study

Pollution in Africa's fast-expanding cities is deadlier than thought, yet green solutions could save tens of thousands of lives and avert billions of dollars in damage, a report said Thursday.

Walkable cities lead to healthier residents

Higher density neighborhoods can help create vibrancy and lead to benefits for the environment and public health, argues a University of Canterbury academic.

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