Switching on the Atlantic Ocean heat pump
34 million years ago the warm 'greenhouse climate' of the dinosaur age ended and the colder 'icehouse climate' of today commenced. Antarctica glaciated first...
New tool maps a key food source for grizzly bears: huckleberries
Researchers have developed a new approach to map huckleberry distribution across Glacier National Park that uses publicly available satellite imagery. Tracking where huckleberry plants...
Sweet spots in the sea: Mountains of sugar under seagrass meadows
Seagrasses play an important role in our climate. They are one of the most efficient sinks of carbon dioxide on Earth. A team of...
Australia’s rarest bird of prey disappearing at alarming rate
Australia's rarest bird of prey -- the red goshawk -- is facing extinction, with Cape York Peninsula now the only place in Queensland known...
Instant hydrogen production for powering fuel cells
Researchers investigated real-time, on-demand hydrogen generation for use in fuel cells, which are a quiet and clean form of energy.
Ancient societies hold lessons for modern cities
Today's modern cities, from Denver to Dubai, could learn a thing or two from the ancient Pueblo communities that once stretched across the southwestern...
How a drought affects trees depends on what’s been holding them back
Droughts can be good for trees. Certain trees, that is. Contrary to expectation, sometimes a record-breaking drought can increase tree growth. Why and where...
Small-scale foragers left more than footprints on the landscape
Archaeological sites like the Great Wall of China and the pyramids can be seen with the naked eye from space, but for ancient societies...
Prehistoric food globalization spanned three millennia
Prehistoric peasant farmers struggling to put more food on the table fueled the global spread of some of the world's first and most important...
Nickel is crucial for Earth’s magnetic field
Earth's hot core, consisting mainly of iron, is responsible for the 'dynamo effect,' which creates a magnetic field. But with iron alone, this effect...