Lab experiments question popular measure of ancient ocean temperatures

Thaumarchaeota archaea, used in the study, were collected from a tropical water tank at the Seattle Aquarium.

Understanding the planet’s history is crucial if we are to predict its future. While some records are preserved in ice cores or tree rings, other records of the climate’s ancient past are buried deep inside the seafloor. An increasingly popular method to deduce historic sea surface temperatures uses sediment-entombed bodies of marine archaea, one of Earth’s most ancient and resilient creatures, as a 150-million-year record of ocean temperatures. 

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Rare nautilus sighted for the first time in three decades by the College's Peter Ward

Nautilus pompilius swimming above a rare Allonautilus scrobiculatus off the coast of Ndrova Island in Papua New Guinea.

In early August, biologist Peter Ward returned from the South Pacific with news that he had encountered an old friend, one he hadn’t seen in three decades. A professor with the College of the Environment’s Earth & Space Sciences and Department of Biology, Ward had seen what he considers one of the world’s rarest animals: Allonautilus scrobiculatus. In 1984, Ward and a colleague discovered the species of nautilus off of Ndrova Island in Papua New Guinea. 

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Power lines jeopardize Washington's threatened sage grouse population

A male sage grouse displaying during mating season.

Transmission lines that funnel power from hydroelectric dams and wind turbines across Eastern Washington impact sage grouse habitat by isolating fragile populations and limiting movement, a new study by the College of the Environment’s Climate Impacts Group and others finds. The paper looks at how features in the landscape limit the species’ distribution and gene flow, and is the first to show that power-line corridors are an obstacle for sage grouse as they move across the landscape to feed and reproduce. 

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Exploring wilderness in one of the lower forty-eight’s most untamed landscapes

Photo: Tim Billo

What is wilderness? As we sit at our computers or scroll through on tablets or smart phones, perhaps we picture the opposite of our current locales—mountainous terrain, soaring evergreens, and a variety of critters that depend on each other to maintain balanced ecosystems. Maybe thoughts of flora and fauna, untamed and unexposed to an otherwise modern, industrialized, human-centric world swirl around. 

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UW researchers model tsunami hazards on the Northwest coast

The coast of the Pacific Northwest from space

Recent press coverage and conversations on social media have been a good reminder for Pacific Northwesterners that they live in a seismically active region. Stretching from northern California to British Columbia, the Cascadia subduction zone could slip at any time, causing a powerful earthquake and triggering a tsunami that would impact coastal communities. Scientists from multiple disciplines at the University of Washington and other institutions are working to learn more about this natural hazard. 

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