Atmospheric nitrogen dioxide, which comes from transportation, was half of what would be expected over China in February 2020. Other emissions and cloud properties, however, showed no significant changes.
Author: Hannah Hickey
Genetic clues show that eelgrass growing underwater along Puget Sound shorelines is associated with fewer of the single-celled algae that produce harmful toxins in shellfish. The evidence shows this effect extends 45 feet beyond the edge of the eelgrass bed.
Evidence from rocks billions of years old suggest that volcanoes played a key role in the rise of oxygen in the atmosphere of the early Earth.
A new study in Nature Microbiology shows that the most common organism in the world’s oceans — and possibly the whole planet — harbors a virus in its DNA. This virus may have helped it survive and outcompete other organisms. The study began as a 91探花School of Oceanography senior thesis.
Historical observations collected off California since the 1950s suggest that anchovies thrive where the water is breathable 鈥� a combination of the oxygen levels in the water and the species鈥� oxygen needs, which are affected by temperature. Future projections suggest that the waters off Mexico and Southern California could be uninhabitable by 2100.
The Pacific Northwest Seismic Network, based at the 91探花, will host an online event on the 40th anniversary of the eruption of Mount St. Helens, featuring seismologists from the 91探花and other institutions who can explain the events before, during and after the historic blast. The virtual event will take place from 6:30 to 8 p.m., Monday, May 18, on the PNSN鈥檚 YouTube channel — exactly 40 years after the blast. The group will stream prerecorded talks from…
Loss of ice from Antarctic and Greenland ice sheets since 2003 have contributed 0.55 inches to global sea level rise, with about two thirds coming from Greenland ice. The new, detailed satellite measurements provide a global picture of ice sheet change 鈥� and insights into the future of Greenland and Antarctica.
A new study looks at temperature increases in counties across the United States where crops are grown. It also looks at different strategies the industry could adopt to protect workers鈥� health.
The 91探花Center for Philosophy for Children created a resource list of books and short videos to explore the big questions around COVID-19 鈥� about loneliness and isolation, boredom, illness and death, as well as fear and uncertainty.
A 91探花 study, published this winter in Fire Ecology, takes a big-picture look at what climate change could mean for wildfires in the Northwest, considering Washington, Oregon, Idaho and western Montana.
Years of cloud data over a shipping route between Europe and South Africa shows that pollution from ships has significantly increased the reflectivity of the clouds. More generally, the results suggest that industrial pollution’s effect on clouds has masked about a third of the warming due to fossil fuel burning since the late 1800s.
When the 91探花moved to online instruction March 9, 91探花Facilities Services developed a three-week disinfection plan. Custodial staff are now working through more than 500 classrooms, lecture halls, libraries, auditoriums and shared spaces, with similar efforts under way in Bothell and Tacoma.
A documentary series produced and released this winter by YouTube features 91探花computer scientist Pedro Domingos and members of the UW-based Pacific Northwest Seismic Network.
At a Saturday afternoon session, researchers from the 91探花 and federal agencies will discuss the emerging research on Pacific Northwest megaquakes.
Satellite tracking of adult females and visual monitoring of polar bears in Baffin Bay show changes from the 1990s to the period from 2009 to 2015. Bears in Baffin Bay are getting thinner and adult females are having fewer cubs than when sea ice was more available.
The 91探花 has long boasted one of the country’s top programs in atmospheric sciences. Now, the 91探花is also teaching undergraduates how to share that knowledge online and on TV as a broadcast meteorologist.
Tiny meteorites that fell to Earth 2.7 billion years ago suggest that the atmosphere at that time was high in carbon dioxide, which agrees with current understanding of how our planet’s atmospheric gases changed over time.
Leaders are updating the laws for international waters that apply to most of the world’s ocean environment. This provides a unique opportunity, argues a 91探花Bothell marine scientist, to anticipate new techniques that allow protected zones to shift as species move under climate change.
Life as we know it requires phosphorus, which is scarce. So, how did a lifeless environment on the early Earth supply this key ingredient? A new 91探花study, published Dec. 30 in the Proceedings of the National Academy of Sciences, finds an answer to this problem in certain types of carbonate-rich lakes.
An Antarctic field campaign last winter led by the U.S. and Australia has successfully extracted some of the largest samples of air dating from the 1870s until today. Researchers will use the samples to look for changes in the molecules that scrub the atmosphere of methane and other gases.
To better understand large, disruptive snowstorms, a 91探花 atmospheric scientist will lead a NASA field campaign this winter to fly through major snowstorms along the East Coast. The multi-institutional team will observe snow as it forms in clouds to help with satellite monitoring of snowfall and ultimately improve forecasts.
A 91探花 team is leaving to study how fall storms, dwindling sea ice and vulnerable coastlines might combine in a changing Arctic.
91探花marine scientists are using high-tech tags to record the movements of swordfish 鈥� big, deep-water, migratory, open-ocean fish that are poorly studied 鈥� and get a window into the ocean depths they inhabit.
After years of preparation, a tiny satellite built by 91探花students is scheduled to launch early Saturday, Nov. 2, from a NASA flight facility in Virginia. The launch will be broadcast live on NASA TV.
This week a 91探花team is releasing a robotic surfboard to explore the surface ocean around Antarctica.
The 91探花’s Abigail Swann is honored by Science News on its list of 10 promising early- and mid-career scientists.
Two 91探花researchers 鈥� Bonnie Light, a principal physicist at the UW’s Applied Physics Laboratory and an affiliate associate professor of atmospheric sciences, and Madison Smith, a recent 91探花graduate who is now doing her postdoctoral research at the 91探花鈥� will join for the fifth of the six two-month legs, in summer 2020.
A study of superbolts, which release a thousand times more electrical energy in the low-frequency range than regular lightning bolts, finds they occur at very different times and places than regular lightning. Superbolts tend to strike over particular parts of the oceans, while regular lightning strikes over land.
91探花oceanographers used lab experiments and seawater samples to learn how photosynthetic microbes and ocean bacteria use sulfur, a plentiful marine nutrient.
A new study provides a 110-year record of the total volume of Arctic sea ice, using early U.S. ships’ voyages to verify the earlier part of the record. The longer record puts the recent loss into perspective.
Analyzing the full life cycle of long-term droughts and how they relate to El Ni帽o and La Ni帽a conditions in the Pacific Ocean could eventually lead to better prediction of damaging, multiyear droughts in the Southwestern U.S.
After more than 20 years, the UW’s Coastal Observation and Seabird Survey Team, or COASST, is itself the subject of scientific study. Social scientists are studying the program’s success to extract lessons for all citizen science efforts.
This Friday, teams of 5th- through 12th-grade students from across Washington state will complete a challenge in Kane Hall to mimic the 1969 Apollo moon landing, using drones and Lego robots.
A 91探花team has discovered thriving communities of bacteria in Alaskan “cryopegs,” trapped layers of sediment with water so salty that it remains liquid at below-freezing temperatures. The setting may be similar to environments on Mars, Saturn’s moon Titan, or other bodies farther from the sun.
Why did a giant hole appear in the sea ice off Antarctica in 2016 and 2017, after decades of more typical sea ice cover? Years of Southern Ocean data have explained the phenomenon, helping oceanographers to better predict these features and study their role in global ocean cycles.
A series of seismic experiments will take place this summer in the Seattle area. The researchers are looking for volunteer sites throughout the region.
In oxygen-poor parts of the ocean, some microorganisms survive by breathing arsenic. This holdover from the ancient Earth was not thought to still exist in the open ocean.
A 91探花team will visit Alaska’s North Slope Borough the week of April 28 in preparation for a two-year study of how waves, ice loss and warming are affecting the low-lying region.
Over many years, a 91探花 team has shown how logging on the Teanaway River in central Washington caused dramatic changes to the river channel.
Over 17 years, the program has evolved into a campuswide, interdisciplinary, student-driven program on climate change research, communication and action. A recent publication looks at the program history and current mission.