How Antarctic ice melt can be a tipping point for the planet's climate
Sep 13, 2017
Melting of Antarctica's ice can trigger rapid warming on the other side of the planet, according to our new research which details how just such an abrupt climate event happened 30,000 years ago, in which the North Atlantic ...
Ancient tree reveals cause of spike in Arctic temperature
Sep 12, 2017
A kauri tree preserved in a New Zealand peat swamp for 30,000 years has revealed a new mechanism that may explain how temperatures in the Northern Hemisphere spiked several degrees centigrade in just a few decades during ...
Could climate change shut down the Gulf Stream?
Jun 07, 2017
The 2004 disaster movie "The Day After Tomorrow" depicted the cataclysmic effects—superstorms, tornadoes and deep freezes— resulting from the impacts of climate change. In the movie, global warming had accelerated the ...
Close connection between deep currents and climate
Apr 03, 2017
Mild winters in northern Europe, rainfall in western Africa, hurricanes in North America -the energy transported around the world by the global ocean circulation affects the climate as well as regional weather phenomena. ...
New explanation links competing theories of the origin of Antarctic glaciation, highlights complexity of climate change
Jan 31, 2017
One of the big mysteries in the scientific world is how the ice sheets of Antarctica formed so rapidly about 34 million years ago, at the boundary between the Eocene and Oligocene epochs.
Scientists unravel the process of meltwater in ocean depths
Jan 30, 2017
An international team of researchers has discovered why fresh water, melted from Antarctic ice sheets, is often detected below the surface of the ocean, rather than rising to the top above denser seawater.
Antarctic bottom waters freshening at unexpected rate
Jan 25, 2017
In the cold depths along the sea floor, Antarctic Bottom Waters are part of a global circulatory system, supplying oxygen-, carbon- and nutrient-rich waters to the world's oceans. Over the last decade, scientists have been ...
New model reveals adaptations of world's most abundant ocean microbe
Nov 15, 2016
Researchers from David Karl's laboratory at the University of Hawai'i at Mānoa (UHM) and from Professor Jens Nielsen's laboratory at Chalmers University of Technology in Göteborg, Sweden, developed a computer model which ...
Seals help plug Antarctic water mystery
Aug 24, 2016
Elephant seals have helped scientists to demonstrate that fresh water from Antarctic's melting ice shelves slows the processes responsible for the formation of deep-water ocean currents that regulate global temperatures.
Gulf stream slowdown to spare Europe from worst of climate change
Jul 11, 2016
Europe will be spared the worst economic impacts of climate change by a slowing down of the Gulf Stream, new research predicts.