Forest managers in the eastern Cascades selectively thin forests to promote wildfire resilience. New research from the UW shows that the same process can also increase seasonal snowpack, providing some relief to drought-prone areas throughout central Washington.
University of Washington researchers show that wildfire is increasingly impacting lands managed under the Northwest Forest Plan, a seminal measure enacted in 1994 to preserve habitat for endangered species.
Research led by the University of Washington and Kaiser Permanente Southern California sheds new light on how the 2025 Los Angeles fires affected people’s health, and how people navigated the health care system during an emergency.
In mid-pregnancy, exposure to any smoke was associated with an elevated risk of preterm birth, with that risk peaking around the 21st week of gestation. In late pregnancy, elevated risk was most closely associated with exposure to high concentrations of wildfire PM2.5, above 10 micrograms per cubic meter.
Bee experts wouldn’t have previously expected to find the likes of Osmia cyaneonitens, Dufourea dilatipes and Stelis heronae in Washington. But this year, while collecting pollinators in Chelan County to study how climate and wildfires affect native bee populations, Autumn Maust, a University of Washington research scientist of biology, discovered eight bee species never recorded in Washington.
A new University of Washington–led study projects that in the next 35 years increasing boreal fires will actually slow global warming by 12% globally and 38% in the Arctic. Because the aerosols in smoke reflect more sunlight and make clouds brighter, summer temperatures during fire season drop, leading to reduced sea ice loss and cooler winter temperatures.
An analysis of the health care records of 1.2 million Southern California residents found that higher long-term smoke exposure was associated with a significant increase in the odds that a person would be diagnosed with dementia. Exposure to non-wildfire PM2.5 also increased a person’s risk of dementia, but to a much lesser degree.
The University of Washington’s Climate Impacts Group has supported a newly released plan for state agencies to address the regional impacts of climate change. The plan, led by the Department of Ecology, includes 10 state agencies’ strategies to address climate impacts.
Phillip Bruner, executive director of the UW Climate Risk Lab and professor of practice of sustainable finance, and other representatives from the lab, will participate Sept. 22-29 in Climate Week NYC. Based in the Foster School of Business, the Climate Risk Lab brings together experts in finance, climate data, and business to research climate-related financial risk.
A project led by the University of Washington to better understand our atmosphere’s complexity is a finalist for NASA’s next generation of Earth-observing satellites. STRIVE will receive $5 million to conduct a one-year concept study, and then will hear whether it is selected for launch.
Forests could also be potential bulwarks against climate change. But, increasingly severe droughts and wildfires, invasive species, and large insect outbreaks — all intensified by climate change — are straining many national forests and surrounding lands. A report by a team of 40 experts outlines a new approach to forest stewardship that “braids together” Indigenous knowledge and Western science to conserve and restore more resilient forestlands. Published March 25, the report provides foundational material to inform future work on climate-smart adaptive management practices for USDA Forest Service land managers.
Scientists at the University of Washington have discovered that nighttime air pollution — coming primarily from car exhaust and power plant emissions — is responsible for a major drop in nighttime pollinator activity. Nitrate radicals (NO3) in the air degrade the scent chemicals released by a common wildflower, drastically reducing the scent-based cues that its chief pollinators rely on to locate the flower. The findings, published Feb. 9 in Science, are the first to show how nighttime pollution creates a chain of chemical reactions that degrades scent cues, leaving flowers undetectable by smell. The researchers also determined that pollution likely has worldwide impacts on pollination.
An international team led by researchers at the University of Washington built a framework to help land managers assess the air quality implications of land management scenarios with different levels of prescribed burning.
Three UW experts are among the authors of the newly released Fifth National Climate Assessment, an overview of climate trends, impacts and efforts to mitigate and adapt to climate change across the nation.
The case studies in Medicine for a Changing Planet, collated from clinical encounters around the world, support health professionals in recognizing and treating a variety of health-related conditions that can be traced to environmental stressors.
Taken together, the two papers’ findings suggest that wildfire smoke poses a risk to people of all ages, not just young children and older adults.
Researchers with the University of Washington and the U.S. Forest Service have developed a new tool, REBURN, that can simulate large forest landscapes and wildfire dynamics over decades or centuries under different wildfire management strategies. The model can simulate the consequences of extinguishing all wildfires regardless of size, which was done for much of the 20th century and has contributed to a rise in large and severe wildfires, or of allowing certain fires to return to uninhabited areas to help create a more “patchwork” forest structure that can help lessen fire severity. REBURN can also simulate conditions where more benign forest landscape dynamics have fully recovered in an area.
Joan A. Casey is an environmental epidemiologist who focuses on environmental health, environmental justice, and sustainability. Her research uses large secondary health datasets, such as electronic health records, to study the relationship between emerging environmental exposures and population health across the lifecourse. She also considers vulnerable populations, joint social and environmental exposures, and health disparities, particularly in an era of climate change. Dr. Casey investigates a range of exposures including wildfires, power outages, ambient temperature, the built environment, fossil fuel…
The UW Climate Impacts Group created an interactive tool that lets state agencies and local governments see what climate scientists project for their county and what they might want to consider when developing their districts’ comprehensive plans through 2100.
Research led by scientists at the University of Washington’s Center for Ecosystem Sentinels reveals that a warming world is increasing human-wildlife conflicts globally. They show that climate shifts can drive conflicts by altering animal habitats, the timing of events, wildlife behaviors and resource availability. It also showed that people are changing their behaviors and locations in response to climate change in ways that increase conflicts.
Forest fire smoke can make you sick, and we’re experiencing more them. In terms of public health, it seems logical to reduce forest fires to limit unhealthy air pollution, but forest managers are increasingly seeing prescribed burning as an essential tool to reduce explosive wildfires. How should we plan to deal with the impacts of these fires?
All forest fire smoke is bad for people, but not all fires in forests are bad. This is the conundrum faced by experts in forest management and public health: Climate change and decades of fire suppression that have increased fuels are contributing to larger and more intense wildfires and, in order to improve forest health and reduce these explosive fires, prescribed and managed fire is necessary. Video: Experts collaborate to troubleshoot necessary fires and harmful smoke Journalists: Download soundbites…
Through public events and exhibitions, connect with the UW community every week! Carving out a brave space: Courage in art May 3, 7:00 PM | HUB Lyceum & Online “Have something to say. Be brave enough to say it. Use your art to change the world.” UW Drama Professor and Head of Directing & Playwriting Valerie Curtis-Newton lives by these words in her directing and teaching career. She urges artists to take risks and inspires audiences to see the world…
The first-of-its-kind center has received a $6 million renewal grant from the National Science Foundation.
Two University of Washington experts in climate change and health are lead authors of the latest report from the Intergovernmental Panel on Climate Change (IPCC). The new report titled Climate Change 2022: Impacts, Adaptations and Vulnerability, published Monday morning, details in over three thousand pages a “dire warning” about the consequences of inaction on reducing the emissions that are causing our planet to warm and on implementing interventions to prepare for and effectively manage the dangerous impacts of climate change…
In 2019, University of Washington researchers witnessed the consequences of an extreme heat event in Argentina at one of the world’s largest breeding colonies for Magellanic penguins. On Jan. 19, temperatures at the site in Punta Tombo, on Argentina’s southern coast, spiked in the shade to 44 C, or 111.2 F. As the team reports in a paper published Jan. 4 in the journal Ornithological Applications, the extreme heat wave killed at least 354 penguins, based on a search for bodies by UW researchers in the days following the record high temperature. Nearly three-quarters of the penguins that died — 264 — were adults, many of which likely died of dehydration, based on postmortem analyses.
New research shows that machine learning — computer algorithms that improve themselves without direct programming by humans — can be used to improve forecasts for lightning, one of the most destructive forces of nature.
In a rare stroke of luck, researchers from the University of Washington, 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’s 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.
Experts Directory The UW News Experts Directory is used by journalists around the world to find people who can speak to various topics in the news. We have nearly 300 experts in the directory, but we are always looking for additional UW researchers across subject areas to add. To inquire about getting your profile added, please reach out to the appropriate Public Information Officer who covers your department. For medical experts, see UW Medicine Newsroom. Speakers Bureau The University of Washington…
In a new series on increasingly common extreme heat waves and their impact on human health published Thursday in the British medical journal The Lancet, a University of Washington climate change and health expert joined more than a dozen international experts to warn that we better prepare. “The preventable heat stress and deaths during this summer’s heat waves highlight the importance of developing a regional heat action plan. A heat wave early warning and response plan that includes all relevant services,…
With wildfire smoke forecast for next week in Seattle and the Occupational Safety and Health Administration in Oregon posting rules for keeping workers safe during increasingly smoky conditions and heat in that state, we caught up with a University of Washington expert on worker safety for advice. Check out Professor Baker’s advice on worker safety in this video. Journalists can download the video here. Marissa Baker, an industrial hygiene program director and assistant professor in the UW Department of…
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’s flareup. A study by University of Washington 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 research 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.
Climate change is further exacerbating human-wildlife conflicts by straining ecosystems and altering behaviors, both of which can deepen the contacts — and potential competition — between people and animals. In an article published July 30 in the journal Science, Briana Abrahms, an assistant professor of biology at the University of Washington and its Center for Ecosystem Sentinels, calls for expanding research into the many ways that climate change will impact the complex interplay between human activities and wildlife populations.
A model of the eastern California forests of the Sierra Nevada looks at the longer-term future of wildfires under future climate change scenarios. Results show an initial roughly decade-long burst of wildfire activity, followed by recurring fires of decreasing area — a pattern that could apply to other hot, dry forests in the West.
Researchers from the University of Washington 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.
The biggest study yet of West Coast wildfire plumes shows how a smoke plume’s chemistry changes over time. Results suggest current models may not accurately predict the air quality downwind of a wildfire.
Simple actions can dramatically improve a person’s chances of surviving a landslide, show records from 38 landslides in the U.S. and around the world. People who survived landslides tended to have moved upstairs or to higher ground, among other key actions.
Climate science has focused on avoiding false alarms when linking extreme weather to climate change. But when meteorologists warn of hazardous weather, they include a second key measure of success — the probability of detection.
UW President Ana Mari Cauce delivered her annual address to the community Oct. 12 at wǝɫǝbʔaltxʷ – Intellectual House on the University of Washington campus. Highlights of the speech are reflected in this video. The audience was entirely virtual this year in accordance with public health guidelines.