Scientists investigating the underside of the world’s largest ice sheet in East Antarctica have discovered a city-size lake whose sediments might contain a history of the ice sheet since its earliest beginnings. That would answer questions about what Antarctica was like before it froze, how climate change has affected it over its history, and how… Continue Reading Newly Discovered Lake May Hold Secret to Antarctic Ice Sheet’s Rise and Fall
Ancient El Niños Reveal Limits to Future Climate Projections
The climate pattern El Niño varies over time to such a degree that scientists will have difficulty detecting signs that it is getting stronger with global warming. That’s the conclusion of a study led by scientists at The University of Texas at Austin that analyzed 9,000 years of Earth’s history. The scientists drew on climate… Continue Reading Ancient El Niños Reveal Limits to Future Climate Projections
UT Graduate Student Research Solves Plate Tectonics Mystery
The longstanding enigma of how tectonic plates can break Earth’s rock-hard shell may have been solved by a recent graduate student at The University of Texas at Austin who caught the Earth in the act of starting a new tectonic conveyor belt off the coast of New Zealand. The world’s tectonic conveyor belts – called… Continue Reading UT Graduate Student Research Solves Plate Tectonics Mystery
Are Deep Fluids Behind the Largest Earthquakes? ‘Not So Fast!’ Says UT Graduate Student
Sandwiched between tectonic plates are layers of material that show up as thin shadows on seismic tomography, a kind of CT scan of the Earth. For years, scientists assumed the anomalies were signs of highly pressurized water squeezed into densely packed rock and that the fluid acted as a kind of hair-trigger on earthquake faults.… Continue Reading Are Deep Fluids Behind the Largest Earthquakes? ‘Not So Fast!’ Says UT Graduate Student
Making Methane from Microbes: UTIG and UT Knoxville Hunt for Biological Source of Fiery Ice
Methane hydrate is a type of icy natural gas that accumulates in the subsurface around the Earth’s continental margins. Because methane is a hydrocarbon, the icy hydrate deposits are an important part of the carbon cycle, accounting for billions of tons — up to 22% — of Earth’s organic carbon. The methane feeding this layer… Continue Reading Making Methane from Microbes: UTIG and UT Knoxville Hunt for Biological Source of Fiery Ice
- « Previous Page
- 1
- 2
- 3
- 4
- 5
- …
- 7
- Next Page »