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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Juneau's Mendenhall Glacier has officially receded from Mendenhall Lake
Scientists confirm Mendenhall Glacier is no longer in contact with Mendenhall Lake, marking a new phase in its long retreat. The shift may slow near‑term ice loss but could alter tourism and views from the visitor center.
Juneau, Alaska, United States
Alaska Public Media

Dark clear skies and solar storm put on a show near Juneau
Bright aurora borealis displays lit up the sky over Juneau, Alaska, on Nov. 12, 2025, following a series of solar flares. Residents gathered at dark locations near Mendenhall Glacier and Lake to watch the northern lights.
Juneau, Alaska, United States
Juneau Empire

Invasive emerald ash borer forces North Yarmouth to remove ash trees from park
North Yarmouth, Maine removed about 80 ash trees from Baston Park after an emerald ash borer infestation was detected. The wood will be processed by the Cumberland Wood Bank for local heating under state-advised precautions.
North Yarmouth, Cumberland County, Maine, United States
The Portland Press Herald

Maine issues new do-not-eat advisory as wildlife tests positive for PFAS in Waldo County
Maine has issued a do-not-eat advisory for white-tailed deer and wild turkeys in parts of Knox, Thorndike and Unity after tests found elevated PFAS in muscle tissue. The advisory expands earlier restrictions tied to contamination from sludge-applied farm fields.
Waldo County, Maine, United States
The Portland Press Herald

Never before seen in Scandinavia: People jumped in their cars to find it
A Tennessee warbler (Leiothlypis peregrina) was captured and identified at Mølen in Vestfold after Storm Amy, marking the first record for Scandinavia. Ornithologists believe it was carried across the Atlantic by strong jet streams; birders rushed from around Norway to see it, though it is unlikely to survive the Norwegian autumn.
Mølen, Vestfold, Norway
NRK

Sitkinak Island deer start Kenai adventure
Alaska wildlife officials translocated 19 Sitka black-tailed deer from Sitkinak Island to near Port Chatham on the Kenai Peninsula to establish a sustainable herd. The deer were GPS-collared and will be monitored to assess survival, expansion, and the feasibility of future hunts.
Port Chatham, Kenai Peninsula, Alaska, United States
Kodiak Daily Mirror

Still summer here – end of September
Although autumn has arrived across most of Sweden, meteorological summer persists along the coast between Skellefteå and Piteå, including Byske. SVT’s meteorologist says autumn is about two weeks later than the 30‑year average, and locals and tourists are enjoying the unusual warmth.
Byske, Västerbotten County, Sweden
SVT Nyheter

2 hikers injured in bear attack on popular trail near Seward
Two hikers were injured after fighting off a brown bear about a quarter-mile up the Exit Glacier trail near Seward. The National Park Service closed the trail while troopers and biologists assess the area.
Seward, Alaska, United States
Anchorage Daily News

Wildfires in E. C. Manning Provincial Park
In September 2025, multiple wildfires were observed near E.C. Manning Provincial Park, BC, highlighting the increasing prevalence and intensity of wildfires in the region.
E.C. Manning Provincial Park, British Columbia

EHD, bluetongue turn up in North Idaho
Idaho Fish and Game confirmed epizootic hemorrhagic disease (EHD) and bluetongue in deer across North Idaho’s Panhandle amid hot, dry conditions, with similar outbreaks reported in Eastern Washington and southeastern Montana. Officials report hundreds of sick or dead deer and expect cases to rise until a hard freeze reduces biting midge vectors.
North Idaho, Idaho, United States
The Spokesman-Review

Human Disturbance and Shorebird Decline in the Victoria Harbour Migratory Bird Sanctuary
Human disturbances, such as off-leash dogs and increased tourism, are causing a decline in shorebird populations at the Victoria Harbour Migratory Bird Sanctuary, disrupting their critical stopover habitat and reflecting broader global biodiversity challenges.
Oak Bay, British Columbia, Canada

The glaciers in Finnmark are melting the fastest of Norway's glaciers
The glaciers in Finnmark, particularly the Øksfjordjøkelen, are melting rapidly, with significant shrinkage observed each year, raising concerns about climate change impacts.
Øksfjordjøkelen, Loppa, Finnmark
NRK
Kristina Brekke, Hanne Larsen, Bent Lindsetmo, Kai Erik Bull, Vanja Ulfsnes

Alaskans drawn to alpine lakes for ‘once-in-a-decade’ ice skating conditions
Alaskans are taking advantage of rare ice skating conditions on alpine lakes in Chugach State Park, with hundreds of people hiking into the backcountry to skate on smooth ice in the shadow of iconic peaks.
Rabbit Lake, Alaska
Anchorage Daily News

Invasive Elodea in Piledriver Slough
Invasive Elodea has been observed since 2020.
Moose Creek, Alaska, United States

Invasive Elodea in 28 Mile Pit
Elodea found on and near Eielson Airforce Base
Eielson Air Force Base, Alaska, United States

2 killed in suspected grizzly bear attack in Canada's Banff National Park
Two people were killed in a suspected grizzly bear attack in Banff National Park, Canada, leading to the euthanization of the bear for public safety.
Banff, Alberta, Canada
CBC

Salmon struggle to spawn amid record-setting drought
Record-setting drought conditions have left many of B.C’s streams and waterways too low for salmon to swim up to spawn. Heiltsuk First Nation leaders say hundreds of fish were found rotting in a creek in Bella Bella, B.C., usually teeming by fall with migrating pink and chum salmon.
CBC

Can we convince tourists to go hiking without leaving any traces?
A growing number of people are visiting Norway’s protected areas. This poses new challenges for national park management. Excrement and rubbish left behind by thousands of tourists degrades Lofotodden National Park’s idyllic nature. What can be done about this problem?
Å, Nordland, Norway
The Independent Barents Observer

No skiing, no snowbanks: Severe snow droughts are coming to the West
Professional skier Amie Engerbretson is already noticing diminishing snow in her hometown of Lake Tahoe. She didn’t know what to do this past Thanksgiving because she couldn’t ski for the first time since she could remember. “The ski seasons are shrinking, and a lot of times the storms are coming in with more rain,” she says. “I can remember being a little girl with 19-foot snow banks in my front yard. I certainly haven't seen snow banks that high as an adult.”
Truckee, California, United States
KCRW

Tangled Up in Blue: Skipping skating
I was looking forward to ice skating this winter. I had bought a pair of Nordic blades. This morning, I woke up to over a foot of snow. It is an early storm for Seward, which was blanketed in white this morning.
Seward, Alaska, United States
Homer News

Chaos after extreme precipitation – Never experienced anything like it
Several roads have been closed as a result of landslides and flooding.
Storås, Sør-Trøndelag, Norway
NRK
Hanne Bernhardsen Nordvåg, Hans Ivar Moss Kolseth, Kristin Agerlie, Morten Karlsen, Marius Andrè Jenssen Stenberg

Amazing November skiing! Lots of snow, lots of cold!
It is November, we have snow and we are skiing the Southcentral Alaska backcountry early and in the best conditions in years.
Anchorage, Alaska, United States

Harmful algae colours the Oslo fjord green
Scientists now say that the harmful alga will survive the winter and that it will probably turn green in the Oslo fjord next year as well.
Oslofjord, Oslo, Norway
Lea Girolami Bråthen, Dag Aasdalen, Maren Nan Myrseth

Later Snowfalls are Causing Challenges for Winter Sports
The first event in Lillehammer is in early December, and despite being able to easily prep the hills in the past, Lillehammer athletes must now rely on snow shipped from other parts of Norway.
Lillehammer, Oppland, Norway

Here winter has become two months shorter
Winter will never be the way it was, according to scientists. Towards the end of the century, the Norwegian Meteorological Institute predicts that the winter weather will gradually disappear from Oslo.
Bodø, Nordland, Norway

The hunting tick has been discovered in Norway
The tick can carry hemorrhagic diphtheria. The disease is widespread in the Middle East, Africa and Asia. In addition, some cases have been seen in southern Europe. The fever can cause serious illness in humans.
Vestby, Akershus, Norway

Southern temperatures in Northern Norway – warmer in Narvik than in Rome
This morning it was as hot in Narvik as in Rome and Istanbul, and far warmer than countries in southern Europe. However, the mild air is on the wane.
Narvik, Nordland, Norway

If you're a surfer, you'll want to read UCSD's final figures on the 'bomb cyclone' waves
The largest wave was a 60-foot 4-inch beast that hit Astoria, Oregon on Sunday. It was a record for the station, which is part of Scripps’ Coastal Data Information Program (CDIP).
Astoria, Oregon, United States
San Diego Union-Tribune

Oil spill reaches Laguna Beach, threatens Crystal Cove in Newport Beach as cleanup efforts intensify
The oil likely will continue to encroach on Orange County beaches for the next few days, officials said.
Los Angeles Times

Animal tragedy in the Oslo fjord
Hundreds of guillemots go astray in the Oslo fjord every autumn. Many are now starving in the food-poor fjord.
Oslofjorden, Oslo, Norway

Chinook salmon returning in surprising numbers to Cowichan River
In 2009, the numbers dropped down to just 500 pairs of Chinook returning. Yet, as of Tuesday, more than 8,000 Chinook had returned to their Cowichan River spawning grounds. The improvement is the result of years of conservation efforts by Cowichan Tribes, who have worked to restore the river to its course before logging operations changed the river.
Cowichan River
CHEK

Was stung by giant wasps – ended up in the emergency room
Nina was going for a walk with the dog when she felt a sting on her toe. On the floor lay a European hornet, the largest wasp in Northern Europe. She is allergic to wasps and immediately realized that this could be dangerous. After a few minutes, her foot swelled up. She became dizzy and her pulse raced.
Øvre Vang, Hamar, Innlandet, Norway

Marine vomit spread along the western coast of Norway
A self-cloning and invincible enemy invades coastal areas. The carpet sea squirt (Didemnum vexillum) or “marine vomit” have been observed nearby Stavanger and Bergen. Large yellow flakes has spread on the seabed and kills everything beneath. It may grow on boats and can spread along the coast.
Engøysundet, Stavanger, Rogaland, Norway
Josef Benoni Ness Tveit, Håkon Mannsåker

The permafrost in Jotunheimen is thawing – We do not know the consequences
Underground, a mighty giant is disintegrating: the permafrost is about to drop its roof. Constantly creeping upwards, the permafrost zone is now 100 meters further up the mountainside than 20 years ago.
Mt. Juvvasshøe, Lom, Innlandet, Norway
Ragnhild Moen Holø, Even Lusæter, Roar Berntsen

Autumn rains eight times more then last year
A year ago Bergensarane was bathed in autumn sun. This autumn it was bathed in rain. In fact, it has come in eight times more rainfall in November this year than last year.
Bergen, Hordaland, Norway

Spring phenomenon in November: There goes the ice for the third time this fall
The warmest November in over 100 years has had unusual consequences in Finnmark. The video shows the third breakup this autumn.
Tana, Norway

Covid in Scotland: Social distancing could wreck mountain footpaths
A surge in the popularity of hillwalking during this year's coronavirus pandemic has seen daily visitor numbers at Ben Lomond grow from 1,000 on a normal sunny weekend to around 2,000. Walkers leaving official paths to avoid other people is causing hillside erosion and damage to vegetation.
Mt. Ben Lomand
BBC News

30 degrees warmer than last year
On Friday, it was measured 12.8 degrees C in Folldal, over 30 degrees warmer than on the same day last year.
Folldal, Innlandet, Norway

Visible Damage to Cancún's Trees
Trees which normally obscure the view of the sea, have lost all of their leaves.
Cancún, Quintana Roo, Mexico

Hurricane Zeta is ashore in resort zone of Mexico’s Yucatan
Zeta broke the record for the previous earliest 27th Atlantic named storm that formed Nov. 29, 2005. It’s also the 11th hurricane of the season. An average season sees six hurricanes and 12 named storms.
Cancún, Quintana Roo, Mexico
WTOP

Dead giant octopuses washed ashore south from Kamchtka peninsula on the Kuril Islands
A mass die off of fish and invertebrates has been reported in the Sea of Okhotsk, west of Kamchatka. Dozens of surfers reported symptoms including including poor eyesight, fever, diarrhea, nausea, vomiting, skin rashes and head and throat aches.
Severo-Kuril’sk, Sakhalin, Russia
Siberian Times

Hurricane Delta lashes Mexico's Yucatan, then heads for US
Hurricane Delta emerged into the Gulf of Mexico on Wednesday and headed toward Louisiana after making landfall just south of the Mexican resort of Cancun, toppling trees and and cutting power to residents of the Yucatan peninsula’s resort-studded coast.
Cancún, Quintana Roo, Mexico
AP NEWS

Debris from 3/11 disaster now washing ashore across Okinawa
Plastic containers washed out to sea after the 2011 earthquake and tsunami disaster are starting to wash up on the shores of Okinawa Prefecture, leaving residents puzzled at the time it took for the items to travel just 2,000 kilometers.
Naha, Okinawa, Japan
The Asahi Shimbun

Eco disaster at Kamchatka peninsula with mass death of sea animals at precious Pacific beach
Khalaktyrsky Beach near Petropavlovsk is littered with hundreds of dead sea animals, from deep-sea Giant Pacific octopuses, to seals, sea urchins, stars, crabs and fish. Surfers were the first to raise alarm after problems with eyesight, fevers and throat aches.
Khalaktyrsky Beach
Siberian Times

No treasure found under the rainbow: The soil is full of plastic garbage
In the pictures, Måøya looks like a pristine natural gem on the coast of Trøndelag. But when scientists and adolescents started digging into the soil, they got shock.
Måøya, Frøya, Sør-Trøndelag, Norway
Solvår Flatås, Stein Lorentzen, Morten Andersen

After record-warm summer in Svalbard, extreme meltdown on the glacier
When glaciologist Jack Kohler returned to Austre Brøggerbreen in Svalbard, he was shocked. More than three meters of the ice at the glacier front had melted away. That's a record. And an ice tunnel had become a trench.
Austre Brøggerbreen, Ny-Ålesund, Svalbard, Svalbard and Jan Mayen

Badger on the Finnmark plateau: – very strange, but also very fun
Odd Arne Hætta thought his dog Leo had found an elk, but it turned out to be something else entirely. Badgers are not common so far north but, sporadic cases have been observed in the past, including in Skibotn in Troms.
Čuonjájávri, Kautokeino, Norway
Marie Elise Nystad, Tom Stian Tretnes Hansen

Mushers react to scary closure of chum fishery
A lack of chum salmon is causing pain in riverside communities of Yukon and Alaska, as mushers are left without a traditional source of food.
Old Crow, Yukon, Canada
CBC

These are among the rarest birds you can see in Norway
This week, bird enthusiast Nils Harry Lillejord experienced a kind of "holy grail" for those who watch birds. When he was on his way to work, he saw a Glossy Ibis (Plegadis falcinellus). The bird has only been seen twenty times since 1835.
Stormyrjordene, Bodø, Nordland, Norway

Stunning beach with hundreds of colourful sparkling pebbles damaged by typhoon Maysak
The remarkable glass beach was formed after years of dumping old vodka, wine and beer bottles, along with jars and ceramics during the Soviet era. Record strong wind destroyed at least half of the unique beach on Ussuri bay.
Vladivostok, Primorskiy, Russia
Siberia Times

Weather delays start of Baja 1000
Ensenada and the surrounding areas of the Northern part of the Baja California peninsula have been inundated with more than four inches of rainfall over the last three days which has forced us, in the interest of safety, to delay the start of the race by 24 hours,
Ensenada, Baja California, Mexico
RACER

Pallets in the marsh melt in warmer climates
Palsmyr is threatened by climate change. At Ferdesmyra in Finnmark, the characteristic ice-filled pals that protrude from the terrain will be gone in a few years.
Ferdesmyra, Norway
Miljødirektoratet/Norwegian Environment Agency

Whitehorse man warns others after falling through ice
The ice may look solid, but emergency officials are warning Yukoners to be wary. M.A. Chartrand learned that the hard way last week.
Whitehorse, Yukon, Canada

Homer man survives bear attack
The man was walking his dogs on a well-used trail when he came across a sow with two cubs, a Fish and Game assistant area wildlife biologist said.
Homer, Alaska, United States
Anchorage Daily News

Unusually Warm Halloween
Anchorage, Alaska, United States

Blue Jay (Cyanocitta cristata) Sighting, Rare on Vancouver Island
This is one of just a small number of Blue Jay sightings recorded on Vancouver Island, British Columbia, Canada.
University of Victoria, British Columbia, Canada
Twitter

Adams River sockeye salmon run lacking fish this year
One short section of the river that last year at Thanksgiving had more than 100 fish in it, this year on the same weekend had less than 20.
Adam's River, BC, Canada
Castanet

Rare bird sighting brings crowds of birding enthusiasts to Vancouver Island
A yellow-browed warbler spotted in Panama Flats on Friday drew dozens of birding enthusiasts to Vancouver Island on Saturday
Panama Flats, Victoria, BC, Canada
CHEK

Climate change thaws permafrost
Nils Thomas discovered "sinkhole" in the middle of Finnmarksvidda. Scientists have long warned against this, and now it happened.
Vuohcetjávri, Kautokeino

Alberta’s bull trout listed as threatened and its ecosystem is in jeopardy
Bull trout, which are technically char, mostly inhabit cold and pristine snow-melt-fed waters. Changes in water quality and temperatures challenge the future for this species in Alberta.
Alberta
thestar.com

Emaciated grizzly bears in Canada spark greater concerns over depleted salmon population
With hibernation fast approaching, a grizzly bear family is spotted searching for fish near the shores of Canada's Knight Inlet. They're emaciated, and wildlife observers worry might not make it through winter. The heartbreaking images highlight another victim of the climate crisis and the depleted salmon population.
Knight Inlet, British Columbia, Canada
CNN

Scarlet Honeyeaters (Myzomela sanguinolenta) Unusually Abundant in Brisbane
Sherwood Arboretum, Queensland, Australia

Road breaks up in heavy rain
The road through Svínadalur, near Súlá river in Leirársveit, broke apart this morning, trapping three tourists who could not get their car out again.
Akranes, West, Iceland
RÚV

Migratory birds still sighted as far as southern Finland
Various species can be spotted in different parts of the country till early October due to warm weather in the south.
Hanko, Uusimaa, Finland
Yle Uutiset

Getting help from Sweden and Denmark for coping with the rains in Fredrikstad
Nearly 1,000 water damages have been reported following the heavy rainfall night to Sunday.
Fredrikstad, Østfold, Norway

White-winged Dove Sighted
After a day of birding on P.E.I., an Island woman returned home to find a rare white-winged dove at her backyard feeder.
Stratford, Prince Edward Island, Canada

California fires: Number of missing soars over 1,000 as Paradise reels from unfathomable losses
The death toll in the Camp fire in Northern California rose to 63 Thursday as President Trump planned to visit California to meet with people impacted by the wildfires in what marks his second trip to the state since his election.
Paradise, California, United States
latimes.com
Alene Tchekmedyian, Nicole Santa Cruz, Javier Panzar

Caribbean swamped by seaweed that smells like rotten eggs
From Belize to Barbados, tourist beaches have been swamped by huge tides of foul-smelling sargassum – and climate change could make the problem worse
Ambergris Caye, Belize, Belize
the Guardian

Hundreds of sea lions take over docks of Cowichan Bay
A raucous crowd has moved into Cowichan Bay and the volume and odour coming from them is wafting for blocks around. Locals estimate over 300 sea lions have descended on the Cowichan community and their presence is proving a huge tourist draw.
Duncan, British Columbia, Canada
CHEK

'New normal' ferocious winds whip up deadly California fires
Two deadly wildfires fueled by "devil winds" tore through opposite ends of California on Sunday, with residents urged to heed evacuation orders by officials forced to leave their own homes. In northern California, the Camp Fire is one of the deadliest and most destructive in the state'
Paradise, California, United States
Reuters

Ecological collapse of Toronto's ravine system has begun, researcher says
Ravines in Toronto, Ontario, Canada
CBC News

Sitka spruce (Picea sitchensis) die-off French Beach
Many mature Sitka spruce trees dying off from French Beach south into Sooke along waterfront. Many dead partway up and needles thin.
North Saanich, British Columbia, Canada
Elizabeth Graham, Jacob Earnshaw, Robin Mulvey

Three new humpback whales identified off east Vancouver Island
Three new humpback whales have been identified off the East Coast of Vancouver Island as that species makes a massive comeback in our waters.
Strait of Georgia, British Columbia, Canada

Sea otter (Enhydra lutris) living near Race Rocks
Race Rocks Ecological Reserve, British Columbia, Canada

Possible green Halloween on the horizon in Fairbanks
With Halloween just over a week out, Fairbanks is looking at the potential of a third straight year with minimal snow cover, and a possible first ever green Halloween.
Fairbanks, Alaska, United States
Alaska Public Media

'A really, really significant sighting': Vancouver Island birdwatchers aflutter over unusual arrival
It's believed the pine bunting has never been seen south of Alaska — until this week.
Victoria, British Columbia, Canada

Record levels of toxic blue-green algae invade Lake Agawam in Southampton
Toxic blue-green algae were found in record levels in Southampton’s Lake Agawam earlier this month, capping a summer during which a dozen South Fork lakes and ponds were closed due to high levels of the harmful bacteria.
Southampton, New York, United States
Newsday

Spread of the Lone Star Tick (Amblyomma americanum) into Southern Ontario
Welland, Ontario, Canada

Seaweed Takes Over Popular Beach at the Grand Turk Cruise Center
Sargassum Seaweed has invaded the beach at the Grand Turk cruise center which is popular with cruise ship passengers.
Cockburn Town, Turks and Caicos Islands
Cruise Hive

Thawing and Eroding Trail
Permafrost thaw is causing trail in Golovin to erode.
Golovin, Alaska, United States

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