One of the hottest debates in archaeology is how and when humans first arrived in North America. Archaeologists have traditionally argued that people walked through an ice-free corridor that briefly opened between ice sheets ...
Archaeology
Dec 16, 2023
1
1232
Antarctica sets the stage for the world's greatest waterfall. The action takes place beneath the surface of the ocean. Here, trillions of tons of cold, dense, oxygen-rich water cascade off the continental shelf and sink to ...
Earth Sciences
May 27, 2023
14
752
The world's oceans are a vast repository for gases including ozone-depleting chlorofluorocarbons, or CFCs. They absorb these gases from the atmosphere and draw them down to the deep, where they can remain sequestered for ...
Earth Sciences
Mar 15, 2021
8
2169
(Phys.org) —A period of rapid, intense cooling, known as the Younger Dryas, took place about 13,000 years ago. Scientists think this sudden change in climate caused the extinction of many large mammals, such as the mammoth, ...
Since the break-up of Gondwana, Australia's biodiversity has evolved mostly in isolation from the rest of the world. Many of our species are unique to Australia.
Ecology
Aug 11, 2023
0
77
A new study published in Nature Communications has revealed that the interplay between meandering ocean currents and the ocean floor induces upwelling velocity, transporting warm water to shallower depths. This mechanism ...
Earth Sciences
Apr 11, 2024
0
1664
Our oceans and the complex "conveyer belt" system of currents that connects them play an important role in regulating global climate. The oceans store heat from the Sun, and ocean currents transport that heat from the tropics ...
Earth Sciences
May 20, 2019
0
137
Researchers at The University of Western Australia have found that although the Indian Ocean is the world's biggest dumping ground for plastic waste, nobody seems to know where it goes.
Environment
Apr 17, 2019
0
385
The Gulf Stream transport of water through the Florida Straits has slowed by 4% over the past four decades, with 99% certainty that this weakening is more than expected from random chance, according to a new study.
Earth Sciences
Sep 25, 2023
5
209
NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope that clean, renewable ...
Engineering
Mar 6, 2009
6
0
