Environment

Researchers pick up the 25 happiest city park systems in the US

Feeling unhappy? Go find a city park—the bigger the better—and try taking a walk outdoors. That’s the upshot of a major new study that measures the...

Wind, solar could replace coal power in Texas

Texas can be a model for the nation on how to effectively replace coal with wind and solar for the state’s energy needs while...

Air pollution could increase risks of depression, autoimmune diseases

In a new study from the University of Verona in Italy, researchers found long-term exposure to air pollution is linked to a heightened risk...

Why your kitchen sponge is disgusting

Researchers at Duke University have uncovered a basic but surprising fact: Your kitchen sponge is a better incubator for diverse bacterial communities than a laboratory...

U.S. fires four times larger, three times more frequent since 2000

Fires have gotten larger, more frequent and more widespread across the United States since 2000, according to a new University of Colorado Boulder-led paper. Recent...

Invasive insects will kill 1.4 million US street trees over next 30 years

A new study estimates that over the next 30 years, 1.4 million street trees will be killed by invasive insects, costing over 900 million...

Half of Americans’ IQ harmed by lead exposure in last century

In 1923, lead was first added to gasoline to help keep car engines healthy. However, automotive health came at the great expense of our...

Tire dumps and aging mattresses may soon be relics of the past

Despite research and policy efforts, recycling initiatives have skidded on more complex materials like tires and mattresses, filling dumps and natural land across the...

How Earth transformed from fiery ball to habitable planet

Researchers at Yale and Caltech have a bold new theory to explain how Earth transformed itself from a fiery, carbon-clouded ball of rocks into...

Why did those birds crash and die?

You’ve probably seen the video — or at least heard some chirpings about it. Footage from a security camera in Cuauhtémoc, a city in Chihuahua,...