Chinook salmon, an iconic species in the Pacific Northwest that supports a major fishery industry and indigenous traditions, have lost up to two-thirds of their genetic diversity over the past 7,000 years, according to a new study. Scientists warn the loss could make it difficult for the species to cope with warming global temperatures and ocean acidification — environmental changes that are already impacting the fish today.

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paper appearing in Geophysical Research Letters uses machine learning to craft an improved model for understanding geothermal heat flux — heat emanating from the Earth’s interior — below the Greenland Ice Sheet. It’s a research approach new to glaciology that could lead to more accurate predictions for ice-mass loss and global sea-level rise.

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When studying the effect of climate change on biodiversity, it is important to consider the climate near the ground (microclimate) which a plant or an animal actually experiences. Deep shady depressions, dense old forests or places close to water for example are always considerably cooler than their surroundings.

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One of the most puzzling questions in breast cancer research is why some tumors stay put, while rogue cells from others break free and spread to surrounding tissues, the first step toward creating a more lethal disease. Although researchers have found some signs in mutated genes or telltale proteins on the cell’s surface, those discoveries don’t tell the whole story.

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This summer, the Norwegian energy company, Statoil, will send a vessel to survey a triangular slice of federal waters about 15 miles south of Long Island, where the company is planning to construct a wind farm that could generate up to 1.5 gigawatts of electricity for New York City and Long Island — enough to power roughly 1 million homes. Construction on the “Empire Wind” project, with scores of wind turbines generating electricity across 79,000 acres of leased federal waters, is scheduled to begin in 2023, with construction completed in 2025.

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