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Research confirms timing of tropical glacier melt at the end of the last ice age

Tropical glaciers in Africa and South America began their retreat simultaneously at the end of the last ice age about 20,000 years ago.

11 Dec 2019 Science Advances

Fiber-optic cables capture thunderquake rumbles

Researchers turned miles of cables under the University Park campus into thousands of virtual sensors capable of detecting tiny seismic events caused by thunder echoing down from the sky during a storm in April.

11 Dec 2019 Journal of Geophysical Research - Atmospheres

One-third of recent global methane increase comes from tropical Africa

The results indicate that about a third of the global atmospheric methane increase observed between 2010-2016 originates in Africa's tropics.

11 Dec 2019 Atmospheric Chemistry and Physics

High above the storm clouds, lightning powers gamma-ray flashes and ultraviolet ‘elves’

The results show the TGF was produced by the high-electric fields produced just prior to a lightning bolt within the thunderstorm cloud - occurring milliseconds after the onset of the lightning leader, which was key to the TGF's formation.

10 Dec 2019 Science

Was Earth’s oxygenation a gradual, not step-wise, process – driven by internal feedbacks?

The findings dramatically increase the possibility of high-O2 worlds existing elsewhere in the universe.

10 Dec 2019 Science

Greenland ice losses rising faster than expected

A team of 96 polar scientists from 50 international organisations have produced the most complete picture of Greenland ice loss to date.

10 Dec 2019 Nature

Florida Tech finds megadroughts fueled cloud forest activity

Sediment samples show recovery from some ecosystem damage is possible.

10 Dec 2019 Nature Ecology & Evolution

Move over Jules Verne — scientists deploy ocean floats to peer into Earth’s interior

An array of floating seismometers in the Pacific Ocean offer the most comprehensive view of Earth's interior.

6 Dec 2019 178th Meeting Acoustical Society of America

Stormquakes: Powerful storms cause seafloor tremors

Scientists have discovered a new seismic phenomenon originating at the ocean floor.

6 Dec 2019 178th Meeting Acoustical Society of America

As farmers protest, ANU experts offer stark water warning

Researchers warned of a grim summer for the rivers of the Murray Darling Basin, and the people, flora and fauna that rely on it.

6 Dec 2019 The Conversation

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