New University of Washington-led research attributes accelerated warming to reduced cloud reflectivity. As efforts to improve air quality have reduced pollution, clouds became less mirror-like, letting more solar radiation reach Earth and revealing the true impact of greenhouse gases.
The Atlantic Meridional Overturning Circulation, or AMOC, is a system of ocean currents that plays a crucial role in regulating Earth’s climate by transporting heat from the Southern to Northern Hemisphere. Climate models have long predicted that global warming will cause the AMOC to weaken, with some projecting what amounts to a near-collapse relative to the AMOC strength in observations today. But a new study from a team of researchers that included the University of Washington shows that the AMOC is likely to weaken to a much lesser extent than current projections suggest.
How fast the level of atmospheric carbon dioxide — and with it, the temperature — goes up matters for the ability of humans and ecosystems to adjust. A slower increase gives humans time to move away from low-lying coasts and animals time to move to new habitats. It turns out the rate of that increase matters for non-living systems, too. Camille Hankel, a postdoctoral researcher at the Cooperative Institute for Climate, Ocean and Ecosystem Studies, talks about her research on the Atlantic Ocean circulation.
Around Anchorage, communications among the critically endangered population of Cook Inlet beluga whales may be masked by ship noise in their core critical habitat, accordingly to the first repertoire of their calls.
Five University of Washington experts comment on the current El Niño, its effect on Pacific Northwest winter weather, as well as on regional and global ocean temperature trends.
Recent recognition of the includes the Butts-Whiting Award for L. Lincoln Johnson, INSIGHT Into Diversity Magazine’s Jesse L. Moore 2022 Supplier Diversity Award, Ben Brunjes’ fellowship with the U.S. Small Business Administration’s Office of Policy Planning and Liaison, and the recognition of Yong Wei as a NOAA Ambassador of Tsunami Risk Assessment.
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.
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’s the sharp-clawed adults that will be most vulnerable.
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.
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 Arctic Ocean’s 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.
The COVID-19 Clearinghouse at UW Law is just one of the ways that faculty and staff across the university have revamped summer research internships and worked with outside partners and employers to involve students in a remote working environment, even for jobs that would normally be out in the field.
A 5-year, up to $300 million grant from NOAA establishes the new Cooperative Institute for Climate, Ocean and Ecosystem Studies, a UW-based institute with partners at the University of Alaska Fairbanks and Oregon State University. The institute will lead collaborative, multidisciplinary research and education activities around oceans and climate.
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.
Nick Bond, Washington’s state climatologist, comments on the unusual weather in Western Washington.
A new study has found that since the early 1980s, a pattern of ocean temperatures and atmospheric circulation has offset most of the impact of warming on the West’s mountain snowpack.
A new, free tool with temperature and precipitation records across Washington, Oregon, Idaho and western Montana as far back as 1881 lets users play around to discover significant trends. It also includes historical snow records for Washington state.
Rapid deoxygenation in the Gulf of St. Lawrence is caused by shifts in two of the ocean’s most powerful currents: the Gulf Stream and the Labrador Current. A detailed model shows that large-scale climate change is causing oxygen to drop in the deeper parts of this biologically rich waterway.
The assistant state climatologist, Karin Bumbaco, looks back on an unusually hot and dry summer — the third-hottest summer that Washington state has experienced since 1895.
A new grant will let a University of Washington-based project add a new fleet to its quest to learn more about past climate from the records of long-gone mariners. The UW is among the winners of the 2017 “Digitizing Hidden Special Collections and Archives” awards, announced Jan. 4 by the Washington, D.C.-based Council on Library and Information Resources. The new $482,018 grant to the UW, the U.S. National Archives and Records Administration and the National Archives Foundation will support “Seas…
A first test of humans’ ability to modify clouds would help explain the behavior of clouds and aerosols, while also testing a possible future climate emergency measure.
A study led by researchers at the University of Washington and the National Oceanic and Atmospheric Administration connects the unprecedented West Coast toxic algal bloom of 2015 to the unusually warm ocean conditions — nicknamed “the blob” — in winter and spring of that year.
UW atmospheric scientists are part of a month-long NASA effort to learn how smoke and clouds interact.
A new study evaluates the performance of a seasonal forecast, developed by researchers at the UW and NOAA, that predicts conditions over the coming months in the Pacific Northwest marine environment.
University of Washington students, faculty and staff are part of the fifth West Coast Ocean Acidification Cruise that will investigate changes to ocean chemistry from Baja to British Columbia. The ship left Thursday from San Diego to begin sampling on Mexico’s northern coast. It will stop May 21 at San Francisco’s Exploratorium Pier, then travel as far as northern Vancouver Island before ending in Seattle in early June. Follow along with the blog, which is being coordinated from shore by…
A study by the UW and others finds that the darkening of the Greenland ice sheet is not due to an increase in wildfires, but is a side effect of a warming climate.
What some have called the “Godzilla El Niño” is now lumbering ashore, right on schedule. El Niño tends to influence North American weather after the first of January, and indeed, we’re seeing warm temperatures in Alaska and much-needed rain in California. University of Washington researchers are tracking what the season will deliver to the Pacific Northwest region. For Washington, El Niño typically brings warm, and often dry, winter weather. That may seem surprising, since the state just experienced a very…
UW scientists will give free talks on climate change for three consecutive Saturdays at Mt. Baker Ski Area.
A citizen science project that asks volunteers to transcribe historic ships’ logbooks to uncover data about past Arctic climate has added logbooks from hundreds of whaling ships. The hunters’ handwritten logs will provide new clues about the history of Arctic climate and sea ice.
A two-month voyage tracking a deep current flowing from one of the most active underwater volcanoes proves that iron released from hydrothermal vents travels thousands of miles, providing a significant source of iron to support life in the broader oceans.
A patch of warm water off the West Coast, nicknamed “the blob” by a UW scientist, is part of a larger shift in the Pacific Ocean that may be responsible for widespread weather changes.
University of Washington scientists published the first large-scale survey of impurities in North American snow. An almost 10,000-mile road trip showed that disturbed soil often mattered as much as air pollution for the whiteness of the snow.
Piles of ancient shells provide the first reliable long-term record for the powerful driver of year-to-year climate changes. Results show that the El Niños 10,000 years ago were as strong and frequent as they are today.
UW researchers this month are on missions to fly above the Arctic Ocean to measure glacier melt, polar storms and Arctic sea ice.
Scientists found a way to use coastal redwood trees as a window into historic climate, using oxygen and carbon atoms in the wood to detect fog and rainfall in previous seasons.
UW researchers and federal scientists have developed the first long-term seasonal forecast of conditions for the Northwest ocean ecosystem.
Nighttime heat waves — events where the nighttime low is unusually hot for at least three days in a row — are becoming more common in western Washington and Oregon.
A volunteer project enlists citizen scientists to transcribe climate observations buried in historic logbooks of U.S. ships that spent time in the Arctic.
A new international assessment found that soot, or black carbon, is a major contributor to global warming — second only to carbon dioxide.
The Seahawks win four times as many home games as they lose when the weather is inclement, compared to less than two to one when it’s not.