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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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Observations

Risso's dolphins observed near Juneau
An unusual sighting of Risso's dolphins near Benjamin Island.
Benjamin Island, Alaska
Barb Lake, Barbara Mahoney, Bruce Wright, Michelle Dutro

Wildfires Tear Across Russia's Far East
Authorities in Buryatia have declared a state of emergency as rapidly spreading wildfires, blamed on human activity, devastate the Zabaikalsky region and the Republic of Buryatia, producing heavy smoke and burning homes.
Buryatia, Siberia, Russia
The Moscow Times

Yesterday was a terrible day: Lac du Bonnet wildfire leaves cottages, homes destroyed
A fast-moving wildfire near Lac du Bonnet, Manitoba forced multiple evacuations and destroyed several homes and cottages, as fire crews and water bombers work to contain the blaze.
Lac du Bonnet, Manitoba, Canada
CTV News

Monday heat in Winnipeg breaks 67-year record
Winnipeg hit a record daytime high of 35.2 °C (95.36 F) on May 12, 2025, shattering a 67-year-old May 12 temperature record amid Canada’s first heat wave of the year, Environment and Climate Change Canada reports.
Winnipeg, Manitoba, Canada
CBC News

Wildfires in Zabaikalsky Region Spread Rapidly Amid Strong Wind and Dry Weather
Strong winds and dry weather are fueling rapidly spreading wildfires across Russia’s Zabaikalsky region, with over 456,000 hectares burning and firefighters racing to protect populated areas.
Zabaikalsky region, Far East Russia, Russia
The Moscow Times

Avalanche near Byron Glacier Trail
On Sunday afternoon, a family on the Byron Glacier Trail in Portage Valley, Alaska captured footage of a large wet springtime avalanche that sent debris down into the valley floor. No one was injured.
Portage Valley, Alaska, United States
Alaska's News Source

Algal Bloom in the North: Up to 1 Million Dead Fish
An algal bloom in Northern Norway dominated by Chrysochromulina and Phaeocystis has caused massive fish die-offs in recent weeks, with up to one million farmed fish reported dead around Astafjorden.
Ibestad, Troms, Norway
NRK Troms og Finnmark

Tree pollen counts in Anchorage are the highest they’ve been in almost a decade
Anchorage is experiencing the highest tree pollen counts in nearly a decade, with counts reaching thousands of grains per cubic meter from birch, poplar, cottonwood, aspen, willow, and alder, triggering widespread allergy symptoms.
Anchorage, Alaska, United States
Alaska Public Media

Mass death of seabirds, seals, and sea otters, abnormal behavior in eastern Hokkaido
Since mid-March, seabirds and marine mammals that appear to have been infected with highly pathogenic avian influenza, which has a high fatality rate, have been confirmed on the eastern coastline of Hokkaido. 　Volunteers are conducting their own surveys in Nemuro City, and as of the 4th, a total of 614 dead seabirds, seals, and sea otters have been confirmed.
Hokkaido, Japan
毎日新聞

Fresh 3.1 Magnitude Tremor Recorded in Ljósufjöll Volcanic System
This event follows a series of deep earthquakes, the last comparable one occurring on April 23, and while no eruption has taken place in nearly a millennium, experts warn these movements could signal deeper volcanic processes.
Mýrar, West Iceland, Iceland
Iceland Review

Blizzard brings hazardous road conditions to North Finland
A late-season blizzard dumped up to 30 cm of snow in northeastern Finland, snarling roads around Kuusamo and Salla and causing train delays between Parikkala and Joensuu due to a damaged electric rail track.
North Finland, Finland
Eye on the Arctic (Yle News)

Dangerously hot in Alaska? New warnings show climate change impact
National Weather Service to launch first heat advisories in Fairbanks and Juneau this summer in response to climate change.
Alaska, United States
USA TODAY

The ‘Hole-in-the-Ground Girl’ investigates an interesting phenomenon
UAF graduate student Leanne Bulger may take an even deeper look into the mysterious hole in the ground that is likely one of many developing all over Alaska.
Fairbanks, Alaska, United States
Anchorage Daily News

Washout closes North Klondike Highway near Dawson City indefinitely
High water and erosion have washed out the North Klondike Highway at kilometre 682 near Dawson City, Yukon, forcing an indefinite closure of the route.
Dawson City, Yukon, Canada
Yukon News

Late-Spring Snow Hits Moscow, Toppling Trees and Causing Power Outages
A historic late‐spring blizzard on May 2 blanketed Moscow with up to 15 cm of snow—the first May 2 snow cover in 75 years—toppling trees onto cars and cutting power for over 26,000 residents. The record snowfall came a day after Moscow was hit by record rainfall and an unusually mild winter. The capital city and its outer suburbs saw 71% of the precipitation usually recorded in May in just 36 hours.
Moscow, Moscow, Russia
The Moscow Times

Diesel spill in Ramfjorden in Tromsø
Light diesel leaked from an oil company facility into Ramfjorden outside Tromsø, and police, fire crews, Kystverket and the acute pollution committee are working to contain it.
Ramfjorden, Tromsø, Norway
NRK Troms og Finnmark

Found larvae in the throat of dead moose calf in Karasjok
A dead moose calf in Karasjok was found with moose botfly larvae in its throat, marking a potentially first reported occurrence of this parasite in inner Finnmark, Norway, raising concerns about its impact on local wildlife.
Karasjok, Finnmark Fylke, Norway
NRK

Wildfires prompt evacuations in parts of Fort St. John, disrupt cellphone and internet in Tumbler Ridge
Wildfires in B.C.'s northeast forced evacuations in parts of Fort St. John and disrupted communications in Tumbler Ridge amid warm, windy conditions that raised fire danger.
Northeast British Columbia, Canada
CBC News

Kuskokwim ice jam brings flood advisory for Kalskag and Aniak
A large ice run jammed on the Kuskokwim River below Aniak on May 1, prompting flood advisories for Aniak and Kalskag, though relief channels kept water below flood levels.
Aniak and Kalskag, Alaska, United States
KYUK

Rare black iceberg spotted off Labrador coast could be 100,000 years old, prof says
A fish harvester photographed a pitch-black iceberg over 100 km off Labrador in mid-May, prompting social media buzz; a Memorial University professor suggests the ice may be 1,000 to 100,000 years old, its dark hue from ancient sediment or volcanic/meteorite dust.
Off the coast of Labrador, Newfoundland and Labrador, Canada
CBC News

Wildfire in Fish Creek Community Forest
A wildfire erupted in Fish Creek Community Forest within Fort St. John, B.C., on May 1, 2025, fueled by warm, dry, and windy conditions amid severe drought, highlighting the increasing risk of human-caused wildfires in urban-adjacent forests due to climate change and industrial practices.
Fort St. John, British Columbia, Canada

Third Far North First Nation evacuates due to flooding
Fort Albany First Nation declared a state of emergency and fully evacuated after flood warnings, marking the third remote Ontario Far North community to evacuate this spring.
Fort Albany First Nation, Ontario, Canada
CTV News Northern Ontario

Red-headed woodpecker
The red-headed woodpecker has been observed for the past week.
Aliceville, Alabama, United States

Ice goes out in Aniak as Kuskokwim breakup works its way toward Bethel
Breakup on the Kuskokwim River reached Aniak on April 30, roughly five days ahead of the median date, though unusually low water levels could increase the risk of ice jams downstream.
Aniak, Alaska, United States
KYUK

Bat infestation closes New Brunswick school for remainder of academic year
Tobique Valley High School in Plaster Rock, N.B., has been temporarily closed and its 134 students and 22 staff relocated to nearby schools after a persistent bat infestation.
Plaster Rock, New Brunswick, Canada
CTV News

Non-toxic red tide blooming in Saanich Inlet
A bloom of non-toxic Noctiluca algae is lining Saanich Inlet’s shoreline; safe for swimmers and shellfish consumption so far. Scientists say the bloom is not producing toxins yet, but could as the water gets warmer. “This one is a bit early!” said Galbraith.
Saanich Inlet, British Columbia, Canada
CHEK

Polar bear attacks and injures skier in Nunavut national park
A skier was evacuated to an emergency shelter before being transported by snowmobile to Pangnirtung’s health centre. The incident occurred early Thursday morning and the skier is receiving treatment, with no update on their condition.
Pangnirtung, Nunavut, Canada

Fireball streaks across Alaska skies
A bright fireball was captured streaking across the Southcentral Alaska sky on the morning of April 24, 2025, visible for about six seconds before disappearing behind trees.
Anchorage, Alaska, United States
Alaska's News Source

Person rescued from car after rockslide in Lofoten
A large rockslide on the E10 at Henningsvær in Vågan, Lofoten, buried a car under boulders; emergency crews rescued the uninjured driver and the road will remain closed for days while cleanup continues.
Vågan, Nordland, Norway
NRK

3 Firefighters Killed as Wildfires Rage in Russia’s Far East
Three firefighters who went missing battling wildfires in the Zabaikalsky region of Russia’s Far East were found dead, prompting a criminal investigation amid a large-scale state of emergency.
Tungokochensky District, Zabaikalsky Region, Russia

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