Earth Sciences

Earth Sciences

Antarctic Sonar Images Reveal Clues to Sea-Level Rise

Motorway-sized troughs and channels carved into Antarctica's continental shelves by glaciers thousands of years ago could help scientists to predict future…

Earth Sciences

Marine Scientists Discover Erupting Undersea Volcano Near Guam

Scientists who have just returned from an expedition to an erupting undersea volcano near the Island of Guam report that the volcano appears to be continuously…

Earth Sciences

World's Largest Tornado Experiment Heads for Great Plains

The collaborative international project, involving scientists from the National Center for Atmospheric Research (NCAR) and a number of other organizations,…

Earth Sciences

New Evidence Challenges Asteroid Theory of Dinosaur Extinction

A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has…

Earth Sciences

Glaciers Advance in South America Amid Global Retreat

The vast majority of the world's glaciers are retreating as the planet gets warmer. But a few, including glaciers south of the equator in South America and New…

Earth Sciences

How Mussels Adapt to Extreme Environments: A Study with Kim Davies

As an undergraduate, Kim Davies worked with Dr. Verena Tunnicliffe, biology professor at the University Victoria, examining how mussels have adapted to…

Earth Sciences

Southern Glaciers Diverge: A Shift in Global Ice Trends

The vast majority of the world’s glaciers are retreating as the planet gets warmer. But a few, including ones south of the equator, in South America and New…

Earth Sciences

Polar 5 Completes Arctic Expedition for Climate Research

The Arctic campaign PAM-ARCMIP (Pan-Arctic Measurements and Arctic Climate Model Intercomparison Project) ended yesterday in Ottawa with the participation of…

Earth Sciences

Contrary to Recent Hypothesis, 'Chevrons' Are Not Evidence of Megatsunamis

A persistent school of thought in recent years has held that so-called “chevrons,” large U- or V-shaped formations found in some of the world's coastal areas,…

Earth Sciences

Seaglider Tracks Arctic Waters During Historic Under-Ice Journey

The result contributes to the longest continuous measurement of fresh water exiting the Arctic through the Canadian Arctic Archipelago and Davis Strait and…

Earth Sciences

Google Earth Helps Discover Early African Mammal Fossils

The circuitous and serendipitous story, featuring University of Michigan paleontologists Philip Gingerich, Gregg Gunnell and Bill Sanders, is the subject of a…

Earth Sciences

Chicxulub Crater Theory Faces New Challenges in Dinosaur Extinction

The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million…

Earth Sciences

Exploring Rotational Seismology: Insights from BSSA Special Issue

The special issue will feature seismological research on all aspects of rotational ground motions (including theory, instrumentation, observation, and…

Earth Sciences

Wetlands Linked to Ancient Methane Spike from Warming Event

An expansion of wetlands and not a large-scale melting of frozen methane deposits is the likely cause of a spike in atmospheric methane gas that took place…

Earth Sciences

Researchers report 'moderately large' potential for red tide outbreak in Gulf of Maine region

The potential for an outbreak of the phenomenon commonly called “red tide” is expected to be “moderately large” this spring and summer, according to…

Earth Sciences

Study Disproves Ancient Seafloor Methane Emission Bursts

The findings, to be published Friday in the journal Science, are good news for those who have worried that this unusual mechanism of releasing methane into the…

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