climate change
November 12, 2015
Oceans — and ocean activism — deserve broader role in climate change discussions
When President Barack Obama visited the shrinking Exit Glacier in September, he pointed to a very obvious sign of our warming planet literally at his feet. Less visible, but perhaps more indelible, signs of changing climate lie in the oceans. A University of Washington researcher argues in the journal Science that people — including world…
October 20, 2015
UW study: Will Puget Sound’s population spike under climate change?
A UW graduate student’s research paper is the first serious study of whether climate change is likely to cause human migration to the Puget Sound region.
September 14, 2015
A more acidic ocean will bend the mermaid’s wineglass
New research from the University of Washington’s Friday Harbor Laboratories shows that a more acidic ocean can weaken the protective shell of a delicate alga. The findings, published Sept. 9 in the journal Biology Letters, come at a time when global climate change may increase ocean acidification.
July 6, 2015
Risk of interbreeding due to climate change lower than expected
Despite worries about interbreeding due to climate change, a new study finds that only about 6 percent of closely related species in the Americas are likely to come into contact by the end of this century.
March 3, 2015
On thin ice: Combined Arctic ice observations show decades of loss
Historic submarine and modern satellite records show that ice thickness in the central Arctic Ocean dropped by 65 percent from 1975 to 2012. September ice thickness, when the ice cover is at a minimum, dropped by 85 percent.
November 21, 2014
UW-made tool displays West Coast ocean acidification data
A new tool developed at the UW displays real-time ocean acidification data for the open ocean and protected bays, helping shellfish growers and scientists see changes in water chemistry.
October 29, 2014
Fires and floods: North Cascades federal lands prepare for climate change
UW scientists worked with managers of federal parks and forests to come up with a strategy to address warmer temperatures, increased wildfires and more flooding in the North Cascades region.
August 21, 2014
Cause of global warming hiatus found deep in the Atlantic Ocean
Observations show that the heat absent from the Earth’s surface is plunging deep in the north and south Atlantic Ocean, and is part of a slow, naturally recurring cycle.
August 13, 2014
Snow has thinned on Arctic sea ice
Historic observations and NASA airborne data provide a decades-long record showing that the snowpack on Arctic sea ice is thinning.
August 8, 2014
Ancient shellfish remains rewrite 10,000-year history of El Niño cycles
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.
August 7, 2014
Ocean’s most oxygen-deprived zones to shrink under climate change
Predictions that the lowest-oxygen environments in the ocean will get worse may not come to pass. UW research shows climate change, by weakening the trade winds, will shrink these extremely low-oxygen waters.
July 16, 2014
Tracking the breakup of Arctic summer sea ice
An international team has placed sensors on and under Arctic sea ice to monitor this season’s retreat. Scientists hope to understand the physics of the ice edge in order to predict summer conditions in the Arctic Ocean.
July 10, 2014
Students calculate future sea-level rise in Olympia
Students in a UW statistics course did a case study on sea-level rise in Olympia. All are co-authors on a new paper that looks at the uncertainties around estimates of rising seas.
May 20, 2014
Shrub growth decreases as winter temps warm up
Many have assumed that warmer winters as a result of climate change would increase the growth of trees and shrubs because the growing season would be longer. But shrubs achieve less yearly growth when cold winter temperatures are interrupted by temperatures warm enough to trigger growth.
May 12, 2014
West Antarctic Ice Sheet collapse is under way
The collapse of the West Antarctic Ice Sheet has begun, according to computer models using detailed topographic maps. The fast-moving Thwaites Glacier will likely disappear in a matter of centuries, researchers say, raising sea level by nearly 2 feet.
May 7, 2014
Greenland melting due equally to global warming, natural variations
Up to half of the recent warming in Greenland and surrounding areas may be due to climate variations that originate in the tropical Pacific and are not connected with the overall warming of the planet. Still, at least half the warming remains attributable to global warming caused by rising carbon dioxide emissions.
March 27, 2014
Citizen scientists: UW students help state legislator with climate policy
Four graduate students were part of a year-long legislative process in Olympia working to reduce greenhouse-gas emissions in Washington state.
February 18, 2014
Embarking on geoengineering, then stopping, would speed up global warming
Carrying out geoengineering for several decades and then stopping would cause warming at a rate more than double that expected due to global warming.
February 3, 2014
Greenland’s fastest glacier sets new speed record
Observations of Jakobshavn Glacier from 2012 and 2013 show the fast-moving glacier has set new records for the speed of ice flowing toward the ocean.
January 29, 2014
Deaths attributed directly to climate change cast pall over penguins
Climate change is killing penguin chicks from the world’s largest colony of Magellanic penguins, not just indirectly but directly because of drenching rainstorms and heat.
January 2, 2014
El Niño tied to melting of Antarctica’s Pine Island Glacier
A new study in Science, co-authored by the British Antarctic Survey and UW authors, shows that melting of the floating Pine Island ice shelf is tied to global atmospheric patterns associated with El Niño.
December 17, 2013
Hack the planet? Geoengineering research, ethics, governance explored
A special interdisciplinary issue of the journal Climatic Change includes the most detailed description yet of the proposed Oxford Principles to govern geoengineering research, and surveys the technical hurdles, ethics and regulatory issues related to deliberately manipulating the planet’s climate.
December 10, 2013
What climate change means for federally protected marine species
As the Endangered Species Act nears its 40th birthday at the end of December, conservation biologists are coming to terms with a danger not foreseen in the 1970s: global climate change.
November 4, 2013
More wildfires, earlier snowmelt, coastal threats top Northwest climate risks
A new comprehensive report co-authored by the UW’s Climate Impacts Group looks at what climate change will mean for Washington, Oregon and Idaho.
October 29, 2013
Redwood trees reveal history of West Coast rain, fog, ocean conditions
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.
October 20, 2013
Global ocean currents explain why Northern Hemisphere is the soggier one
A new study in Nature Geoscience explains a major feature of global precipitation, and shows how a current originating from the poles influences tropical rainfall in Africa and southern India.
September 30, 2013
UW researchers helped draft international assessment of climate change
UW faculty members were among international researchers who compiled the fifth climate-change assessment report. The UW will host a seminar Tuesday, Oct. 1 with some of the Seattle-area authors.
September 17, 2013
Stronger winds explain puzzling growth of sea ice in Antarctica
Despite warming temperatures, Antarctic sea ice is on track to hit a record high. A new study suggests stronger polar winds can explain the recent increase in Southern Hemisphere sea ice.
August 30, 2013
New ocean forecast could help predict fish habitat six months in advance
UW researchers and federal scientists have developed the first long-term seasonal forecast of conditions for the Northwest ocean ecosystem.
August 1, 2013
Scientists review the ecological effects of sea ice loss
A UW atmospheric scientist is co-author of a review paper, published this week in the journal Science, looking at the ecological consequences of sea ice decline.
July 30, 2013
Santa’s workshop not flooded – but lots of melting in the Arctic
Widespread media reports of a lake at the North Pole don’t hold water — but scientists who deployed the monitoring buoys are watching closely as Arctic sea ice approaches its yearly minimum.
June 25, 2013
Clearing up confusion on future of Colorado River flows
Leading experts on water issues in the Western U.S. have come together to establish what is known about the future of Colorado River water, and to understand the wide range of estimates for future flows.
June 6, 2013
Pollution in Northern Hemisphere helped cause 1980s African drought
Air pollution in the Northern Hemisphere in the mid-20th century cooled the upper half of the planet and pushed rain bands south, contributing to the prolonged and worsening drought in Africa’s Sahel region. Clean air legislation in the 1980s reversed the trend and the drought lessened.
May 20, 2013
Amazon River exhales virtually all carbon taken up by rain forest
A study published this week in Nature Geoscience shows that woody plant matter is almost completely digested by bacteria living in the Amazon River, and that this tough stuff plays a major part in fueling the river’s breath.
April 14, 2013
Recent Antarctic climate, glacier changes at the ‘upper bound’ of normal
In recent decades the thinning of glaciers at the edge of Antarctica has accelerated, but new UW-led research indicates the changes, though dramatic, cannot be confidently attributed to human-caused global warming.
April 3, 2013
UW group part of national report, meeting on adaptation to climate change
The UW’s Climate Impacts Group is part of a national report and first-ever national meeting on adapting to the effects of a changing climate.
March 28, 2013
Volunteers use historic U.S. ship logbooks to uncover Arctic climate data
A volunteer project enlists citizen scientists to transcribe climate observations buried in historic logbooks of U.S. ships that spent time in the Arctic.
March 11, 2013
Remote clouds responsible for climate models’ glitch in tropical rainfall
One of the most persistent biases in global climate models is due to poor simulation of cloud cover thousands of miles to the south.
February 18, 2013
Mussels cramped by environmental factors
The fibrous threads helping mussels stay anchored are more prone to snap when ocean temperatures climb higher than normal.
February 13, 2013
European satellite confirms UW numbers: Arctic Ocean is on thin ice
New satellite observations confirm a University of Washington analysis that for the past three years found accelerated declines in the volume of Arctic sea ice.
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