Arctic Report Card 2025: My Detailed and Comprehensive Chat (Lecture:) on Ongoing Arctic Disruptions скачать в хорошем качестве

Arctic Report Card 2025: My Detailed and Comprehensive Chat (Lecture:) on Ongoing Arctic Disruptions

Arctic Report Card 2025: My Detailed and Comprehensive Chat (Lecture:) on Ongoing Arctic Disruptions I chat (lecture) about the latest edition (20 years running) of the Arctic Report Card released at the AGU (American Geophysical Union) Conference late last year. Surface air temperatures across the Arctic were warmest recorded since 1900 Autumn 2024 and winter 2025 were especially warm across the Arctic: temperatures ranking 1st and 2nd warmest last 10 years are the 10 warmest on record in the Arctic Since 2006, Arctic annual temperature has increased at more than double the global rate of temperature changes Precipitation from October 2024 to September 2025 set a new record high Arctic precipitation totals for winter, spring, and autumn were each among the top five since 1950. In the ocean -March 2025, Arctic winter sea ice reached the lowest annual maximum extent in the 47-year satellite record September 2025 saw 10th lowest minimum sea ice extent. All of the 19 lowest September minimum ice extents have occurred in the last 19 years August 2025, marginal seas of the Arctic Ocean’s Atlantic sector saw average sea surface temperatures ~7°C warmer than the 1991-2020 August average oldest, thickest Arctic sea ice (age 4 years or older) declined by more than 95% since the 1980s. Multi-year sea ice is now largely confined to the area north of Greenland and the Canadian Archipelago Arctic Ocean regions that are ice-free in August have warmed by 2.3°F since 1982. From 2003 to 2025, phytoplankton productivity spiked by 80% in the Eurasian Arctic, 34% in the Barents Sea, and 27% in Hudson Bay Plankton productivity in 2025 was higher than the 2003-22 average in eight of nine regions assessed across the Arctic Atlantification—an influx of water properties from lower latitudes—has reached the central Arctic Ocean, hundreds of miles from the former edge of the Atlantic Ocean Atlantification weakens Arctic Ocean layering of waters of different densities, therefore enhancing heat transfer, melting sea ice, and threatening ocean circulation patterns that exert a long-term influence on the weather Warming bottom waters, declining sea ice, and rising chlorophyll in the Chukchi and northern Bering Seas are driving shifts in mid-water and bottom-dwelling species, reshaping fisheries, affecting Arctic food security and Indigenous subsistence practices. Glaciers in Arctic Scandinavia and Svalbard experienced the largest annual net loss of ice on record between 2023 and 2024 Greenland Ice Sheet lost an estimated 129 billion tons of ice in 2025 continuing the long-term trend of net loss Alaskan glaciers have lost an average of 125 vertical feet (38 meters) of ice since the mid-20th century, dramatically lowering ice surfaces statewide Ongoing glacier loss contributes to steadily rising global sea levels, threatening Arctic communities’ water supplies, driving destructive floods and increasing landslide and tsunami hazards that endanger people, infrastructure, and coastline Throughout Arctic, snowpack was higher than normal during the 2024/25 snow season and remained high through May. Despite this, by June snow cover extent dropped below normal, consistent with levels the past 15 years. June snow cover extent over the Arctic today is half of what it was six decades ago. In over 200 Arctic Alaska watersheds, iron, and other elements released by thawing permafrost have turned pristine rivers and streams orange over the past decade. In “rusting rivers”, the increased acidity and elevated levels of toxic metals degrade water quality, compromising aquatic habitat and eroding biodiversity. First detected in the late 1990s, the “greening of the Arctic” has far-reaching impacts to Arctic habitats, permafrost conditions, and the livelihood of Arctic people, with implications for global climate and the carbon cycle. In 2025, maximum Arctic tundra greenness was the third highest in the 26-year satellite record, continuing a sequence of record or near-record high values since 2020. References Arctic Report Card links: https://arctic.noaa.gov/report-card/ https://arctic.noaa.gov/report-card/r... https://arctic.noaa.gov/report-card/r... https://arctic.noaa.gov/arctic-indica... https://arctic.noaa.gov/wp-content/up... Year end - Year start GoFundMe: https://www.gofundme.com/f/help-paul-... Please donate to http://PaulBeckwith.net to support my research and videos connecting the dots on abrupt climate system mayhem. Please subscribe to my YouTube channel. As well as my website, and YouTube, you can find me on Patreon, Facebook, Twitter/X, LinkedIn, Instagram, Reddit (multiple climate channels within), Quora, TikTok, Discord, Mastodon, Twitch, Vimeo, Bluesky, TruthSocial, Threads, Substack, Tumblr, Pinterest, etc...