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Earth Science

A tractor sprays fertilizer or pesticides on a green field.
Photo Credit
MaYcaL via iStock
Synthetic fertilizer has increased the amount of nitrogen compounds in the biosphere, compounds that must be converted by microbes back into nitrogen gas.

A rare atomic fingerprint reveals how ecosystems clean nitrogen pollution

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The surface of Lake Superior from the back of a research vessel.
Photo Credit
Alexandra Phillips
The sulfate poor waters of Lake Superior could provide insights on the biochemistry of Earth's early ocean.

Research in Lake Superior reveals how sulfur might have cycled in Earth’s ancient oceans
A roadcut slices through the Great Unconformity.
Photo Credit
Adrian Tasistro-Hart
Cambrian Sawatch sandstone from the Sauk Transgression caps 1 billion-year-old Pikes Peak granite (pink) marking the Great Unconformity in a roadcut in Manitou Springs, Colorado.

Geologists link continental flooding to subduction, with consequences for geologic gaps and the rise of complex life
illustration of comets in Earth's night sky

A prehistoric cosmic airburst preceded the advent of agriculture in the Levant
The cover of “Mighty Bad Land” with Mount Luyendyk in the background.
Photo Credit
Bruce Luyendyk
Peak 1070 — near one of the team’s field camps — was renamed Mount Luyendyk in honor of the author’s contribution to our knowledge of Antarctica.

‘Mighty Bad Land’: A tale of danger and discovery in West Antarctica
Side-by-side headshots of Tanya Atwater, Leda Cosmides and Nelson Lichtenstein
Photo Credit
Courtesy photo
Left to right: Tanya Atwater, Leda Cosmides and Nelson Lichtenstein

Joining one of the world’s premier honorary societies, three professors are named to the American Academy of Arts & Sciences
blue lab coat with UNIVERSITY OF CALIFORNIA in yellow stitching
Photo Credit
Matt Perko

A University of California multi-campus initiative strives to boost diversity within its STEM teaching faculty ranks
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Records from Platform Holly provide a glimpse of how petroleum production affects natural gas seeps
People sit watching erupting volcano in the distance

The Earth’s Newest Secret
Brown mountains in Antarctica along icy blue waters

Magma and Ice

A Prehistoric Climate Feedback Loop

Climate and Conflict

A Remarkable Impact
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