NOAA Fisheries is using life-cycle modeling that projects threatened Snake River spring/summer chinook salmon will experience starkly lower survival rates during their years in the ocean in the future compared to now. Unusually warm temperatures—including a 2014-2015 marine heatwave— have depressed salmon returns to many West Coast rivers, including the Snake and Columbia.
For decades, climate change researchers and activists have used dramatic forecasts to attempt to influence public perception of the problem and as a call to action on climate change. These forecasts have frequently been for events that might be called "apocalyptic," because they predict cataclysmic events resulting from climate change.
The Columbia River basin will see an increase in flooding over the next 50 years as a result of climate change, new modeling from Oregon State University indicates.
In 2017, a widely cited study used statistical tools to model how likely the world is to meet the Paris Agreement global temperature targets. The analysis found that on current trends, the planet had only a 5% chance of staying below 2 degrees Celsius warming this century — the international climate treaty’s supposed goal.
President Biden’s executive orders on climate change come as a warming climate already plays a key role in continued declines of Columbia River Basin salmon and steelhead populations listed under the Endangered Species Act. One of the orders directly addresses fisheries.
The effects of a changing climate continue to significantly affect Oregonians and the state’s resources and infrastructure, the latest biennial report released today by the Oregon Climate Change Research Institute concludes.
During the summer of 2020, an area of unusually warm ocean water—a marine heatwave—grew off the West Coast of the United States. It became the second most expansive Northeast Pacific heatwave since monitoring began in 1982. The heatwave eventually encompassed about 9.1 million square kilometers, almost six times the size of Alaska, towards the end of September.
Unusually warm river conditions killed most adult sockeye salmon migrating up the Columbia and Snake River system in 2015, reflecting a “new normal” with climate change, a new NOAA Fisheries study finds.
In a letter Friday (Oct.9) the four Northwest states announced they have agreed to work together to rebuild Columbia River salmon and steelhead stocks and to advance the goals of the Columbia Basin Partnership Task Force.