climate
March 12, 2024
AI analysis of historical satellite images show USSR collapse in 1990s increased methane emissions, despite lower oil and gas production
An AI-powered analysis of 25 years of satellite images yields the surprising finding that methane emissions in Turkmenistan, a former Soviet republic and major oil-producing region, actually increased in the years following the dissolution of the Soviet Union.
February 3, 2023
Ice cores show even dormant volcanoes leak abundant sulfur into the atmosphere
Non-erupting volcanoes leak a surprisingly high amount of sulfur-containing gases. A Greenland ice core shows that volcanoes quietly release at least three times as much sulfur into the Arctic atmosphere than estimated by current climate models. Aerosols are the most uncertain aspect of current climate models, so better estimates could improve the accuracy of long-term projections.
April 13, 2022
Ice shards in Antarctic clouds let more solar energy reach Earth’s surface
Including the splintering of ice inside clouds around Antarctica improves high-resolution global models’ ability to simulate clouds over the Southern Ocean – and thus the models’ ability to simulate Earth’s climate.
July 8, 2021
Remotely-piloted sailboats monitor ‘cold pools’ in tropical environments
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.
December 9, 2020
Warm oceans helped first human migration from Asia to North America
New research reveals significant changes to the circulation of the North Pacific and its impact on the initial migration of humans from Asia to North America. It provides a new picture of the circulation and climate of the North Pacific at the end of the last ice age, with implications for early human migration.
August 20, 2020
February lockdown in China caused a drop in some types of air pollution, but not others
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.
July 27, 2020
Pristine air over Southern Ocean suggests early industrial era’s clouds not so different from today’s
A new study led by the University of Washington and the University of Leeds uses satellite data over the Southern Hemisphere to understand the makeup of global clouds since the Industrial Revolution. This research tackles one of the largest uncertainties in today’s climate models — the long-term effect of tiny atmospheric particles on climate change.
December 12, 2019
Video: Barrels of ancient Antarctic air aim to track history of rare gas
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.
August 6, 2019
How the Pacific Ocean influences long-term drought in the Southwestern U.S.
Analyzing the full life cycle of long-term droughts and how they relate to El Niño and La Niña conditions in the Pacific Ocean could eventually lead to better prediction of damaging, multiyear droughts in the Southwestern U.S.
January 16, 2019
For 35 years, the Pacific Ocean has largely spared West’s mountain snow from effects of global warming
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.
November 26, 2018
UW, Tableau create interactive tool to explore more than a century of Pacific Northwest weather observations
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.
May 15, 2018
Forest loss in one part of US can harm trees on the opposite coast
If an entire forest dies, new research shows, it has ricocheting effects in the atmosphere that can affect vegetation on the other side of the country.
April 2, 2018
Earth’s stable temperature past suggests other planets could also sustain life
Earth has had moderate temperatures throughout its early history, and neutral seawater acidity. This means other rocky planets could likely also maintain this equilibrium and allow life to evolve.
February 7, 2018
Ice core shows North American ice sheet’s retreat affected Antarctic weather
A study from the University of Colorado Boulder and the University of Washington finds that the retreat of the ice sheet covering North America made Antarctic weather more similar from one year to the next.
October 5, 2017
Northwest climate science community gathers Oct. 9-11 in Tacoma
The eighth annual Northwest Climate Conference will take place in Tacoma, and begins with a free public discussion featuring UW experts on Monday evening.
May 22, 2017
Weathering of rocks a poor regulator of global temperatures
Evidence from the age of the dinosaurs to today shows that chemical weathering of rocks is less sensitive to global temperature, and may depend on the steepness of the surface. The results call into question the role of rocks in setting our planet’s temperature over millions of years.
May 17, 2017
Earth’s atmosphere more chemically reactive in cold climates
A study of a Greenland ice core shows that during large climate swings, chemically reactive oxidants shift in a different direction than expected, which means we need to rethink what controls these molecules in our air.
April 17, 2017
Models, observations not so far apart on planet’s response to greenhouse gas emissions
New analysis debunks reports that recent observations are showing that Earth’s temperature responds less to greenhouse gases than predicted by climate models.
January 10, 2017
Rapid Arctic warming has in the past shifted Southern Ocean winds
Ice core records from the two poles show that during the last ice age, sharp spikes in Arctic temperatures triggered shifts in the winds around Antarctica.
November 16, 2016
Large forest die-offs can have effects that ricochet to distant ecosystems
Major forest die-offs due to drought, heat and beetle infestations or deforestation could have consequences far beyond the local landscape. Wiping out an entire forest can have significant effects on global climate patterns and alter vegetation on the other side of the world.
September 13, 2016
Westerly winds have blown across central Asia for at least 42 million years
The winds that gust across the Tibetan Plateau have done so for far longer than previously believed, showing they are resilient to the formation of mountains and changes in carbon dioxide and temperature.
September 12, 2016
UW scientist helping direct NASA field study of clouds off Namibia
UW atmospheric scientists are part of a month-long NASA effort to learn how smoke and clouds interact.
April 6, 2016
UW-led field project watching clouds from a remote island off Antarctica
From a tiny island halfway between New Zealand and Antarctica, scientists hope to learn more about the physics of clouds above the stormy, inhospitable Southern Ocean.
March 17, 2016
Galapagos lakes reveal tropical Pacific climate since Biblical times
University of Washington oceanographers track 2,000 years of El Niño history, showing that it can shift in strength for centuries at a time.
January 26, 2016
Mathematical model explains huge recurring rainstorms in the tropical Indian and Pacific oceans
A new model explains the fundamental features of the Madden-Julian Oscillation, which some scientists predict will be the “next El Nino.”
November 11, 2015
UW, NASA measure rain and snowfall to gauge new precipitation satellite
With high-tech weather radars, weather balloons, ground instruments and NASA’s DC-8 flying laboratory, scientists will be watching rain and snow storms on Washington’s famously wet Olympic Peninsula.
July 17, 2015
Marine plankton brighten clouds over Southern Ocean
New research led by the University of Washington and the Pacific Northwest National Laboratory suggests tiny ocean life in vast stretches of the Southern Ocean plays a significant role in generating brighter clouds overhead.
April 29, 2015
Antarctic ice core shows northern trigger for ice age climate shifts
UW glaciologists were part of a team that used a new Antarctic ice core to discover which region triggered sudden global-scale climate shifts during the last ice age.
September 11, 2014
UW-built sensors to probe Antarctica’s Southern Ocean
Floating sensors built at the UW will be central to a new $21 million effort to learn how the ocean surrounding Antarctica influences climate.
February 26, 2014
Pine forest particles appear out of thin air, influence climate
German, Finnish and U.S. scientists have discovered how gas wafting from coniferous trees creates particles that can reflect sunlight or promote formation of clouds.
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.
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.
