Maps of ancient warming

A new study has produced globally complete maps of the carbon-driven warming that occurred in the Paleocene Eocene Thermal Maximum (PETM), 56 million years ago. Changes in rainfall patterns and amplification of warming at the poles were remarkably consistent with modern trends. 

Antarctic rivers

Researchers have found an unexpected river beneath the Antarctic ice sheet that affects the flow and melting of ice, potentially accelerating ice loss as the climate warms. Its discovery indicates the base of the ice sheet has more active water flow than previously thought. 

An ultrafine network of rivers

A team of researchers led by IGB scientist Sami Domisch, have developed the highest resolution map of the world’s river systems ever produced. The map provides a basis for the detailed study of what characterizes riverine habitats and how they are interconnected. The map is based on the “Hydrography90m” data set. 

Cause for collapse of AMOC

The Atlantic meridional overturning circulation (AMOC), an ocean current system that carries warm water from the tropics into the North Atlantic and transports cold water from the northern to the southern hemisphere, is an important mechanism for the regulation of Earth’s climate. 

AI predicts future fault slip

An AI natural language processing approach is able to predict future fault friction and the next failure time with high resolution in laboratory earthquakes. The technique applies AI to the fault’s acoustic signals and goes beyond by predicting aspects of the future state of the fault’s physical system. 

Melt ponds in West Greenland

During spring and summer, as the air warms up and the sun shines down on the Greenland Ice Sheet, melt ponds form. Melt ponds are extensive pools of open water that form on both sea ice and ice sheets and are visible from space. 

Temperature-salinity staircases

Researchers at the University of Toronto have identified the mechanism responsible for the formation of salinity and temperature “staircases” in the Arctic Ocean, resolving a mystery that has complexed oceanographers and climatologists for more than half a century.