Underwater microphones show that killer whales, or orcas, have spent more time in the Arctic Ocean in recent years. The increasingly ice-free Arctic Ocean may give orcas more opportunity to hunt for prey off the west and north coasts of Alaska.
Tag: College of the Environment
A new effort to reconstruct Earth’s climate since the last ice age, about 24,000 years ago, highlights the main drivers of climate change, and how far out of bounds human activity has pushed the climate system.
An oceanographer at the 91自拍 is part of a new project to study how glacial dust, created as glaciers grind the rock beneath them into a powder, reacts with seawater to remove carbon dioxide from the atmosphere.
Results show that by the end of this century, lower-oxygen water on the Pacific Northwest coast will pose the biggest threat to Dungeness crabs. And while these crabs start as tiny, free-floating larvae, it鈥檚 the sharp-clawed adults that will be most vulnerable.
In a rare stroke of luck, 91自拍ers from the 91自拍, the University of California, Berkeley, and the University of California, Santa Barbara, were able to track a group of black-tailed deer during and after California鈥檚 third-largest wildfire, the 2018 Mendocino Complex Fire. The megafire, which torched more than 450,000 acres in northern California, burned across half of an established study site, making it possible to record the movements and feeding patterns of deer before, during and after the fire.
A 91自拍 91自拍er is part of an international team that has used modern tools to explain repeating patterns of stones that form in frost-prone landscapes.
A new study has found that recent bigleaf maple die-off in Washington is linked to hotter, drier summers that predispose this species to decline. These conditions essentially weaken the tree鈥檚 immune system, making it easier to succumb to other stressors and diseases.
91自拍 oceanographer Parker MacCready is one of 59 new fellows elected this year by the American Geophysical Union.
The UW Climate Impacts Group, along with nine community, nonprofit and university partners, is launching a program of community-led, justice-oriented climate adaptation work across Washington, Oregon, Idaho and Montana. The Northwest Climate Resilience Collaborative will be founded with a five-year, $5.6 million grant from the National Oceanic and Atmospheric Association. The program will be one of eleven across the country funded through NOAA鈥檚 Regional Integrated Sciences and Assessments program.
The 91自拍 is among the best universities in the world for the studies of health and life sciences, according to the Times Higher Education World University Rankings by Subject 2022.
91自拍 glaciologists will join colleagues from around the country in a new effort to retrieve an ice core more than 1 million years old from East Antarctica, to better understand the history of our planet鈥檚 climate and predict future changes.
The new Cascadia Coastlines and Peoples Hazards Research Hub, led by Oregon State University and the 91自拍, will study coastal hazards and community resilience. The National Science Foundation awarded $18.9 million for the hub over five years.
A new analysis of 2.5-billion-year-old rocks from Australia finds that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere. This would change existing stories of Earth鈥檚 early atmosphere, which assumed that most changes in the early atmosphere were controlled by geologic or chemical processes.
Firefighters have reported that Western wildfires are starting earlier in the morning and dying down later at night, hampering their ability to recover and regroup before the next day鈥檚 flareup. A study by 91自拍 and U.S. Forest Service scientists shows why: The drying power of nighttime air over much of the Western U.S. has increased dramatically in the past 40 years.
Seeing the urgent need for change, a team of scientists from leading 91自拍 universities, conservation organizations and government laboratories across the West has produced a synthesis of the scientific literature that clearly lays out the established science and strength of evidence on climate change, wildfire and forest management for seasonally dry forests. The goal is to give land managers and others across the West access to a unified resource that summarizes the best-available science so they can make decisions about how to manage their landscapes.
For more than a century, 91自拍ers have relied on flat sketches of sharks鈥� digestive systems to discern how they function 鈥� and how what they eat and excrete impacts other species in the ocean. Now, 91自拍ers have produced a series of high-resolution, 3D scans of intestines from nearly three dozen shark species that will advance the understanding of how sharks eat and digest their food.
Twenty scientists and engineers at the 91自拍 are among the 38 new members elected to the Washington State Academy of Sciences for 2021, according to a July 15 announcement. New members were chosen for 鈥渢heir outstanding record of scientific and technical achievement, and their willingness to work on behalf of the Academy to bring the best available science to bear on issues within the state of Washington.鈥�
A UW-led study uses data from remotely-piloted sailboats to better understand cold air pools — pockets of cooler air that form when rain evaporates below tropical storm clouds. These fleeting weather phenomena are thought to influence tropical weather patterns.
The region north of Greenland and the Canadian Arctic has been termed the Last Ice Area, where sea ice will remain the longest in summertime, providing a refuge for ice-dependent Arctic species. But conditions last summer show that parts of this region are already experiencing less summer ice due to climate change.
Researchers from the 91自拍 provide a first look at the probability of observing common birds as air pollution worsens during wildfire seasons. They found that smoke affected the ability to detect more than a third of the bird species studied in Washington state over a four-year period. Sometimes smoke made it harder to observe birds, while other species were actually easier to detect when smoke was present.
91自拍 Provost Mark A. Richards has announced interim deans for both the College of the Environment and University Libraries.
Satellite images show that from 2017 to 2020, Pine Island Glacier’s ice shelf lost about one-fifth of its area, mostly in three dramatic breaks. This caused the glacier to speed up by 12%, hastening its downward motion and boosting its contribution to rising seas.
91自拍 glaciologists are co-authors on two papers that analyzed Antarctic ice cores to understand the continent鈥檚 air temperatures during the most recent glacial period. The results help understand how the region behaves during a major climate transition.
Maya Tolstoy has been named the Maggie Walker Dean of the College of the Environment, 91自拍 Provost Mark Richards announced today. Tolstoy鈥檚 appointment as dean, set to begin Jan. 1, 2022, is subject to approval by the UW Board of Regents.
Ice core data from Greenland shows why air pollution is dropping more slowly than sulfur emissions reductions. As cloud droplets become less acidic, the chemical reaction that turns sulfur dioxide into sulfate aerosol gets more efficient. The new results can improve the models that project air quality and climate change.
The U.S. Geological Survey, the 91自拍-based Pacific Northwest Seismic Network, and state emergency managers on Tuesday, May 4, will activate the system that sends earthquake early warnings throughout Washington state. This completes the rollout of ShakeAlert, an automated system that gives people living in Washington, Oregon and California advance warning of incoming earthquakes.
Leveraging the tectonic laboratory of the Cascadia subduction zone, the 91自拍 today announced a new effort to best understand how to study and live with the threats of earthquakes, tsunamis, volcanos, landslides and other seismic hazards. Dubbed the GeoHazards Initiative, the interdisciplinary work aims to develop and promote the adoption of early detection systems both on land and at sea to help prevent the loss of human life and property.
Scientists at the 91自拍, in collaboration with The Nature Conservancy, are raising sunflower sea stars in captivity, with the goal of learning more about this species and exploring eventual reintroduction to the wild, if determined to be advisable.
Four 91自拍 faculty members have been inducted into the American Academy of Arts & Sciences.
In the Cascadia subduction zone, medium- and large-sized 鈥渋ntraslab鈥� earthquakes, in which the slip happens within the oceanic plate and below the continental plate, will likely produce only a few detectable aftershocks, according to a new study from the 91自拍 and the U.S. Geological Survey.
As carbon dioxide continues to rise, multiple changes in the leaves of tropical plants may help these ecosystems perform better under climate change than previous studies had suggested.
Joshua Lawler, a 91自拍 professor in the School of Environmental and Forest Sciences, has been named a 2021 fellow of the Ecological Society of America. Fellows are elected for life, and the honor recognizes scientists who advance or apply ecological knowledge in academics, government, nonprofits and the broader society.
Scientists from the 91自拍 are testing the viability of making maple syrup in the Pacific Northwest. Long associated with Canada or Vermont, this sweet forest product that has graced many a breakfast table may be part of this region鈥檚 future.
Lightning strikes in the Arctic tripled from 2010 to 2020, a finding 91自拍 91自拍ers attribute to rising temperatures due to human-caused climate change. The results, 91自拍ers say, suggest Arctic residents in northern Russia, Canada, Europe and Alaska need to prepare for the danger of more frequent lightning strikes.
Thanks to 20 years of observations from thousands of citizen scientists, 91自拍 91自拍ers have discovered distinct patterns in the mass strandings of by-the-wind sailor jellies. Specifically, large strandings happened simultaneously from the northwest tip of Washington south to the Mendocino coast in California, and in years when winters were warmer than usual.
The future of an equitable and sustainable global ocean, or 鈥淏lue Economy,鈥� depends on more than natural or technological resources. A new study finds that socioeconomic and governance conditions such as national stability, corruption and human rights greatly affect different regions鈥� ability to achieve a Blue Economy 鈥� one that is socially equitable, environmentally sustainable and economically viable.
A new method to rate tornado warnings shows that nighttime tornadoes in the U.S. have a lower probability of detection and a higher false-alarm rate than other events. Summertime tornadoes, occurring in June, July or August, also are more likely to evade warning.
The Arctic Ocean鈥檚 Beaufort Sea has increased its freshwater content by 40% over the past two decades. When conditions change this freshwater will travel to the Labrador Sea off Canada, rather than through the wider marine passageways that connect to seas in Northern Europe. This has implications for local marine environments and global ocean circulation.
To understand how Puget Sound has changed, we first must understand how it used to be. But unlike most major estuaries in the U.S., long-term monitoring of Puget Sound fish populations did not exist until 1990. Now 91自拍ers have discovered an unconventional method to help fill in gaps in the data: old vessel logbooks.
After years in development, an earthquake early warning system known as ShakeAlert is on the cusp of being released in Oregon and Washington. Harold Tobin, director of the Pacific Northwest Seismic Network, answers questions about the coming rollout.