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The world’s freshwater lakes are freezing over for shorter periods of time due to climate change. This shift has major implications for human safety, as well as water quality, biodiversity, and global nutrient cycles, according to a new analysis from an international team of researchers.

Oregon State University researchers have received a $1 million grant to study the impact of adding seaweed to the diets of beef cattle as a way to reduce greenhouse gas emissions.

An international coalition led by Oregon State University scientists concludes in its annual report published this month that the Earth’s worsening vital signs indicate a “critical and unpredictable new phase of the climate crisis” and that “decisive action is needed, and fast.”

The California Current ecosystem is a vital ocean system stretching from Washington to Baja California. It is facing a strong 2024 El Niño event, a cyclical warming of the Pacific Ocean. However, the latest information from NOAA’s Integrated Ecosystem Assessment program suggests the ecosystem is better positioned to weather these changing conditions than previous El Niño events.

Marine heat waves in the northeast Pacific Ocean create ongoing and complex disruptions of the ocean food web that may benefit some species but threaten the future of many others, a new study has shown.

Walleye are one of the most sought-after species in freshwater sportfishing, a delicacy on Midwestern menus and a critically important part of the culture of many Indigenous communities. They are also struggling to survive in the warming waters of the midwestern United States and Canada.

In a study that could help reshape understanding and management of water resources in the Western United States, David Ketchum, a 2023 graduate of the University of Montana systems ecology Ph.D. program, has unveiled a 35-year analysis quantifying the interconnected impacts of climate change and irrigation on surface water flows.

An international coalition of climate scientists says in a paper published this week that the Earth’s vital signs have worsened beyond anything humans have yet seen, to the point that life on the planet is imperiled.

The Western United States is losing its glaciers. A new inventory from Portland State University researchers shows that some glaciers have disappeared entirely, some no longer show movement, some are too small to meet the 0.01 square kilometer minimum and some are actually rock glaciers — rocky debris with ice in the pore spaces.

With climate change, some spawning habitat in British Columbia could actually expand, peaking in area around 2060, according to a recent study that looked at current stream habitat and projected future favorable spawning habitat as the climate warms.

Researchers who study water resources want to know how much snow an area will get in a season. The total snowpack gives scientists a better idea of how much water will be available for hydropower, irrigation and drinking later in the year.

New research has found that marine heat waves – prolonged periods of unusually warm ocean temperatures – haven’t had a lasting effect on the fish communities that feed most of the world.

Shifting ocean conditions associated with climate change will likely send high-value sablefish into deeper waters off the West Coast, new research shows. That could make the fish tougher to catch and force fishing crews to follow them or shift to other, more accessible species.

The next step in Oregon State University’s construction of a wave energy testing facility off the Oregon Coast is visible to residents and visitors to the area this month.

Climate change has led to earlier spring blooms for wildflowers and ocean plankton but the impacts on salmon migration are more complicated, according to new research.

Since 1980, fires have gotten significantly larger and more severe across California and the western United States, vastly increasing the amount of destruction they cause.

A recent study has revealed that climate change has had a profound impact on the Colorado River Basin between the years 2000 and 2021. The study shows that over this period, more than 40 trillion liters (10 trillion gallons) of water were lost due to climate change effects, which is roughly equivalent to the entire storage capacity of Lake Mead.

A new study of North American songbirds finds that birds can’t keep up with the earlier arrival of spring caused by climate change. As a result, they’re raising fewer young.

Wildfires have become increasingly frequent due to climate change, with record occurrences in areas not historically prone to them. In California, wildfires and regional power shutoffs have cost billions and taken lives. For some 46 million Americans living next to forests – at what scientists call the “wildland-urban interface” (WUI) – the risks of wildfire can be especially acute.

In early 2014, a great anomaly descended upon the seas: A patch of warm water that manifested in the Gulf of Alaska. Scientists called it “The Blob.”

A team of Oregon State University researchers is leading a three-year effort to learn more about climate fluctuations in Olympic Coast National Marine Sanctuary using more than 20 years of oceanographic data.

Deteriorating habitat conditions caused by climate change are wreaking havoc with the timing of bird migration.

Ecological relationships across the Pacific Coast that once guided annual expectations such as salmon returns are evolving as climate change disrupts long-standing connections. NOAA Fisheries researchers report these findings in their latest Ecosystem Status Report for the California Current Ecosystem.

An international collaboration led by Oregon State University scientists has identified 27 global warming accelerators known as amplifying feedback loops, including some that the researchers say may not be fully accounted for in climate models.

Snow-capped mountains aren’t just scenic – they also provide natural water storage by creating reservoirs of frozen water that slowly melt into watersheds throughout the spring and summer months. Much of the Western U.S. relies on this process to renew and sustain freshwater supplies, and new research underscores the impacts of extreme weather conditions on this annual cycle. 

New research shows that the wettest and most extreme winter storms in the Western United States are only growing wetter and larger. These powerful storms are changing shape in a warmer world, sprawling to drench more land while simultaneously growing more intense at their cores.

Climate projections reported by ExxonMobil scientists between 1977 and 2003 were accurate and skillful in predicting subsequent global warming and contradicted the company’s public claims, a new Harvard study shows.

Douglas-fir trees will likely experience more stress from drier air as the climate changes than they will from less rain, computer modeling by Oregon State University scientists shows.

Researchers project that most glaciers in western Canada will be gone in 80 years.

More than a century of preserved fish specimens offer a rare glimpse into long-term trends in parasite populations. New research from the University of Washington shows that fish parasites plummeted from 1880 to 2019, a 140-year stretch when Puget Sound — their habitat and the second-largest estuary in the mainland U.S. — warmed significantly.

As climate change worsens water quality and threatens ecosystems, the famous dams of beavers may help lessen the damage.

The National Oceanic and Atmospheric Administration has awarded Oregon State University and its research partners $4.2 million to investigate how multiple climate change-related stressors are impacting marine ecosystems off the coast of Oregon, Washington and Northern California.

Forecasters are predicting a “three-peat La Niña” this year. This will be the third winter in a row that the Pacific Ocean has been in a La Niña cycle, something that’s happened only twice before in records going back to 1950.

The number of trout in a southern Oregon stream system showed no decline one year after a fire burned almost the entire watershed, including riparian zone trees that had helped maintain optimal stream temperatures for the cold-water fish.

A new study led by Oregon State University suggests leaves in forest canopies are not able to cool themselves below the surrounding air temperature, likely meaning trees’ ability to avoid damaging temperature increases, and to pull carbon from the atmosphere, will be compromised in a warmer, drier climate.

Despite decades of resiliency, climate change may put Montana’s popular trout fisheries at risk, according to a new study.

Global fish stocks will not be able to recover to sustainable levels without strong actions to mitigate climate change, a new study has projected.

As glaciers worldwide retreat due to climate change, managers of national parks need to know what’s on the horizon to prepare for the future. A new study from the University of Washington and the National Park Service measures 38 years of change for glaciers in Kenai Fjords National Park, a stunning jewel about two hours south of Anchorage.

A new study led by a University of Idaho researcher offers high-resolution details on how Chinook salmon habitats, due to climate change, are being lost on Bear Valley Creek, a headwater stream of the Salmon River in central Idaho.

Using future projections of the latest generation of Earth system models, a new study found that most of the world's ocean is steadily losing its year-to-year memory under global warming.

New research led by an Oregon State University scientist provides the first long-term study of methods to control the spread of wildfire in the sagebrush steppe ecosystem that dominates parts of the western United States.

Since about 1900 Washington state’s Olympic Peninsula has lost half of its glacier area and since 1980, 35 glaciers and 16 perennial snowfields have disappeared.

Pacific Northwest seafood lovers may see more Humboldt squid but less sockeye salmon on restaurant menus in the near future due to climate change.

In early September 2020, severe winds, high heat, and prolonged drought conditions led to the explosive growth of wildfires along the western slopes of the Cascades Mountains in the Pacific Northwest. The fires engulfed enormous tracts of forestland, destroyed communities, took dozen of lives, and cost hundreds of millions to fight.

In the early morning hours of January 9, 2018, intense rainfall loosened debris and mud in the Santa Ynez mountains, in Santa Barbara County, that had been torched by the Thomas Fire just months before.

The people, economy, and ecosystems of the Pacific coast states of California, Oregon and Washington are highly dependent on cool-season atmospheric rivers for their annual water supply.

A new report shows cooler waters on the West Coast were sandwiched between a marine heatwave and historically hot, dry conditions on land in 2021. NOAA Fisheries researchers from the Northwest and Southwest Fisheries Science Centers presented these findings to the Pacific Fishery Management Coun

As the name implies, California market squid are often sold in stores and typically found between Baja California and Monterey Bay. So, the squid’s periodic appearance in the Gulf of Alaska – about 745 miles north of its expected range – has given researchers pause.

Change can be hard, especially when it involves soaring summer temperatures, mega-droughts, invasive species and other items from the list of unpleasant outcomes of climate change. In the Western U.S. where skiing, hiking, biking, hunting and other forms of outdoor recreation are core to many people’s lives, and where local economies rely on income generated by these activities, the impacts are already difficult to ignore.

Research led by Oregon State University shows that fires are more likely to burn their way into national forests than out of them.

The first atlas to measure the movement and thickness of the world’s glaciers gives a clearer, but mixed picture of the globe’s ice-bound freshwater resources, according to researchers from the Institute of Environmental Geosciences and Dartmouth College.

Like humans, wild animals often return to the same places to eat, walk on the same paths to travel and use the same places to raise their young.

Retreating glaciers in the Pacific mountains of western North America could produce around 6,150 kilometers of new Pacific salmon habitat by the year 2100, according to a new study.

How much and how long a severely burned Pacific Northwest mountain landscape stays blanketed in winter snow is a key factor in the return of vegetation, research by Oregon State University and the University of Nevada, Reno shows.

Mountain snowpacks around the world are on the decline, and if the planet continues to warm, climate models forecast that snowpacks could shrink dramatically and possibly even disappear altogether on certain mountains, including in the western United States, at some point in the next century.

The National Marine Fisheries Service denied two petitions this week that, if they had been approved, would have separated spring chinook from the fall chinook evolutionary significant unit along two areas of the Oregon and California coast. The petitions also asked for spring chinook, once separated from its fall chinook ESU, to be listed separately as a threatened or endangered species under the federal Endangered Species Act.

Marine heatwaves in the Pacific Ocean will increase in both intensity and duration as will ocean acidification along the Pacific Northwest coast, says the latest report from the Intergovernmental Panel on Climate Change released this week.

Human-caused wildfire ignitions in Central Oregon are expected to remain steady over the next four decades and lightning-caused ignitions are expected to decline, but the average size of a blaze from either cause is expected to rise, Oregon State University modeling suggests.

As the climate warms and more and more cascading streams dry up, changing those streams to disconnected puddles that trap migrating juvenile salmon and steelhead, humans may have to step in to rescue the fish. Without this intervention, some stocks may go extinct, according to a recent study.

Spawn timing for wild chinook salmon in the Skagit River system in Washington is slowly occurring later in the year as the river warms due to climate change, a finding that fits with previous research. However, the trend for hatchery-origin stray chinook salmon in the same river is towards earlier spawning, according to a recent study.

Marine heatwaves across the world's oceans can displace habitat for sea turtles, whales, and other marine life by 10s to thousands of kilometers. They dramatically shift these animals' preferred temperatures in a fraction of the time that climate change is expected to do, new research shows.

A new University of Alaska-led study provides the first evidence that declines in many of Alaska's chinook salmon populations can be attributed in part to climate-driven changes in their freshwater habitats.