Andy Ridgwell

Sleeping giant could end deep ocean life

Mayra Gandarilla — Mon, 29 Aug 2022 23:07:26 +0000

Sleeping giant could end deep ocean life Mayra Gandarilla Mon, 08/29/2022 - 16:07 More News Jules Bernstein August 17, 2022

"A previously overlooked factor — the position of continents — helps fill Earth’s oceans with life-supporting oxygen. Continental movement could ultimately have the opposite effect, killing most deep ocean creatures.

'Continental drift seems so slow, like nothing drastic could come from it, but when the ocean is primed, even a seemingly tiny event could trigger the widespread death of marine life,' said Andy Ridgwell, UC Riverside geologist and co-author of a new study on forces affecting oceanic oxygen."

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Global Climate & Environmental Change

Andy Ridgwell

Geology professor joins elite class of American Geophysical Union fellows

Anonymous — Fri, 29 Oct 2021 19:18:35 +0000

Geology professor joins elite class of American Geophysical Union fellows Anonymous (not verified) Fri, 10/29/2021 - 12:18 More News October 20, 2021

"Geology Professor Andy Ridgwell has been named a 2021 fellow of the American Geophysical Union, or AGU, one of the most significant honors a scientist in earth sciences can receive.

AGU is a large international society dedicated to promoting Earth and space science. It elects fewer than 0.1% of its 60,000 members each year to join this prestigious group of individuals.

Ridgwell’s new status as fellow acknowledges his decades of research into the causes of dramatic climate events in Earth’s past, as well as what the future is likely to hold. "

Global Climate & Environmental Change

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Andy Ridgwell

To survive asteroid impact, algae learned to hunt

Anonymous — Mon, 02 Nov 2020 16:18:43 +0000

To survive asteroid impact, algae learned to hunt Anonymous (not verified) Mon, 11/02/2020 - 08:18 More News October 30, 2020

Tiny, seemingly harmless ocean plants survived the darkness of the asteroid strike that killed the dinosaurs by learning a ghoulish behavior — eating other living creatures.

Vast amounts of debris, soot, and aerosols shot into the atmosphere when an asteroid slammed into Earth 66 million years ago, plunging the planet into darkness, cooling the climate, and acidifying the oceans. Along with the dinosaurs on the land and giant reptiles in the ocean, the dominant species of marine algae were instantly wiped out — except for one rare type.

Paleontology, Paleobiology, Paleoecology

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Andy Ridgwell

Carbon Released Faster Today than Anytime in Past 66 Million Years

Anonymous — Mon, 13 Aug 2018 19:08:40 +0000

Carbon Released Faster Today than Anytime in Past 66 Million Years Anonymous (not verified) Mon, 08/13/2018 - 12:08 More News March 23, 2016 Riverside, Ca

"The earliest instrumental records of Earth’s climate, as measured by thermometers and other tools, start in the 1850s. To look further back in time, scientists investigate air bubbles trapped in ice cores, which expands the window to less than a million years. But to study Earth’s history over tens to hundreds of millions of years, researchers examine the chemical and biological signatures of deep sea sediment archives."

Astrobiology

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Andy Ridgwell