Cracking the ice code
(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?
Rare particles give clue to ancient Earth
(Phys.org) —Semi-precious minerals found in a bucket of sand from an island nation have cracked open a clue to the drifting movements and break-up of ancient Earth's massive continental plates.
Geologic study suggests Earth's tectonic activity peaked 1.1 billion years ago
Scientists may have found Brazilian 'Atlantis'
Brazilian geologists announced the discovery, 1,500 kilometers (900 miles) from Rio, of what could be part of the continent that was submerged when the Atlantic Ocean was formed as Africa and South America ...
Fossil shells and new geochemical technique provide clues to ancient climate cooling
Using a new laboratory technique to analyze fossil snail shells, scientists have gained insights into an abrupt climate shift that transformed the planet nearly 34 million years ago.
Sea-ice ecosystem possibly triggered evolution of baleen whales and penguins
The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. The origin of its ecosystems can be ...
Heatwaves: Longer, hotter and more common
(Phys.org) —Australia's summer heatwaves are lasting longer and have been increasing in number over the past 60 years, a UNSW study shows.
Researchers contend increase in Antarctic sea ice due to summer melt
Out of Africa: Chameleons migrated by sea
Chameleons took to the waves to migrate from Africa to Madagascar about 65 million years ago, said a study published on Wednesday that seeks to resolve a roiling biological debate.
Revealed: The Earth's 'electrical heartbeat' seen in clouds
(Phys.org) —The height of clouds changes by up to 200m during a day under the influence of a global 'electrical heartbeat' in the atmosphere, scientists at the University of Reading have discovered.
Siberian fossil revealed to be one of the oldest known domestic dogs
Analysis of DNA extracted from a fossil tooth recovered in southern Siberia confirms that the tooth belonged to one of the oldest known ancestors of the modern dog, and is described in research published March 6 in the open ...
African elephants face 'alarming declines'
African elephants face the worst crisis since global trade in ivory was banned almost a quarter-century ago, with the risk of extinction rising in worst-hit nations, conservationists said Wednesday.
One-euro device that recharges mobile on the go
A transparent film that costs just one euro to make could bring an end to the anguish of mobile phone users facing the dreaded dead-battery message.
African elephant fares better in countries with good education than in countries with newly created nature
Elephants are rare in African countries where poor schooling, a failing economy and widespread corruption are rife. Countries where these factors are well-organised have larger populations of elephants. It would appear that ...