A recent NOAA report examines the impact of climate change on Alaska salmon, revealing that Chinook and chum salmon populations are collapsing on the Yukon and Kuskokwim Rivers, while sockeye salmon numbers in Bristol Bay are near record highs. The report, released on Tuesday, notes that Western Alaska salmon abundance reached historic extremes in 2021 and 2022, highlighting the divergent trends in salmon populations in the region.