Toronto — Beaches across Canada’s far northeast Newfoundland and Labrador province have increasingly been littered with mysterious white blobs. Their appearance has so far befuddled scientists, and led Canadian officials in the region to launch an investigation.

Beachgoers first noticed the unusual blobs on the shores of Newfoundland and Labrador in September. People quickly started sharing photos of the gelatinous clumps on a Facebook group with more than 40,000 members that is dedicated to exploring the region’s coastal areas.

“Anyone know what these blobs are. They are like touton dough and all over the beach,” wrote Philip Grace on the Beachcombers Facebook group, comparing the finds to a regional dish. “These were in sizes ranging from dinner plate size right down to a toonie [Canadian 2-dollar coin].”

Some people speculated online that the mystery blobs could be the result of ships dumping substances into the ocean. Others suggested they could be whale sperm, whale vomit or even ambergris, a byproduct of sperm whales that’s valued for its use in perfumes and other products. 

But the experts weren’t to be dragged into the speculation.

Environment and Climate Change Canada, the government agency responsible for investigating the mystery, simply referred to the blobs as “a mystery substance” when asked by CBS News on Tuesday.

Newfoundland resident David McGrath told The Guardian newspaper that he’d seen hundreds of the items scattered across his local beaches.

“They looked just like a pancake before you flip it over, when it has those dimpled little bubbles. I poked a couple with a stick and they were spongy and firm inside,” he told the newspaper. “I’ve lived here for 67 years, and I’ve never seen anything like this. Never.”

“They sent the Coast Guard over and I asked them how bad it was. They told me they had 28 miles of coastline littered with this stuff and had no idea what it was,” McGrath said. “Is it toxic? It is safe for people to touch?” 

Samantha Bayard, a spokesperson for Environment and Climate Change Canada, told CBS News the agency was first informed about the “mystery substance” on beaches on Sept. 7. Environmental emergency officers visited sites at least three times to assess the situation and collect samples.

“To date, ECCC has conducted several aerial, underwater and manual surveys of the beaches and shorelines in the area to determine the extent of the substance, what it is and its potential source,” she said. “At this time, neither the substance nor its source has been identified.”

Bayard said a preliminary laboratory analysis by the agency suggested the material “could be plant-based,” but stressed that additional analysis was required “before a final determination can be made on the substance and its potential impacts.”

Stan Tobin, a local environmentalist, told CBS News’ partner network BBC News that he’d found “hundreds and hundreds of blobs — big blobs, little blobs.”

“Somebody or somebodies know where this came from and how it got there, and knows damn well it’s not supposed to be here,” Tobin told the BBC.

Bayard said the ECCC was committed to addressing pollution incidents and environmental threats with urgency.

“If enforcement officers find evidence of a possible violation of federal environmental legislation, they will take appropriate action in accordance with the applicable Compliance and Enforcement Policy,” she told CBS News.

The outlook for “Doomsday Glacier” just got gloomier. 

Scientists are warning the Antarctic Ice Sheet, known formally as the Thwaites Glacier, will deteriorate “further and faster” and that sea level rise triggered by the melting could impact “hundreds of millions” in coastal communities.

“Towards the end of this century, or into the next century, it is very probable that we will see a rapid increase in the amount of ice coming off of Antarctica,” said Dr. Ted Scambos, a glaciologist at the University of Colorado. “The Thwaites is pretty much doomed.”

The findings are the culmination of six years of research conducted by the International Thwaites Glacier Collaboration, a collective of more than 100 scientists.

The “Doomsday Glacier,” roughly the size of the state of Florida, is one of the largest glaciers in the world. Scientists predict that its collapse could contribute to 65 centimeters, or roughly 26 inches in sea level rise.

If you account for the ice the Thwaites will draw in from the large surrounding glacial basins when it collapses, the sea level rise could be even higher. “That total will be closer to three meters of sea level rise,” Scambos said.

According to the researchers, the volume of water flowing into the sea from the Thwaites and its neighboring glaciers has doubled from the 1990s to the 2010s.

Approximately 1/3 of the front of the Twaites is currently covered by a thick plate of ice — an ice shelf — floating in the ocean that blocks ice from flowing into the sea. However, Scambos said the melting is accelerating and that the ice sheet is “very near to the point of breakup.” 

“Probably within the next two or three years, it will break apart into some large icebergs,” he said. 

This will eventually leave the front of the glacier exposed. This may not necessarily lead to a sudden acceleration in melting, but it will change how the ocean interacts with the front of the ice shelf, Scambos said.

Deep ridges that prevent ice from flowing into the ocean are on their way out. The ridges, in the bedrock below the ice sheet in Antarctica, provide a “resistive force” against the ice, Scambos said, that slows down its flow into the ocean. As the Thwaites collapses, it will lose contact with these protective ridges, causing more ice to empty into the ocean.

One of the more surprising findings to come from the International Thwaites Glacier Collaboration was how tidal activity around the glacier is pumping warmer sea water into the ice sheet at high speed. That water, which is a couple of degrees above freezing, is getting trapped in parts of the glacier and forced further upstream.

“It goes in every day, it gets squashed up under the glacier. It completely melts whatever freshwater ice it can, and then it gets ejected, and then the whole thing starts again,” said Scambos.

The new findings from the International Thwaites Glacier Collaboration add to a vast body of research on how the deterioration of glaciers worldwide could contribute to sea level rise. In May, a study found that high-pressure ocean water is seeping beneath the “Doomsday Glacier” leading to a “vigorous ice melt.”  

Study co-author Christine Dow called the Thwaites the “most unstable place in the Antarctic” and said the speed at which its melting could prove “devastating for coastal communities around the world.” 

Researchers at the University of California, Irvine predicted the ocean could rise by about 60 centimeters, or about 23.6 inches, roughly on par with the predictions from scientists part of the International Thwaites Glacier Collaboration.

Scientists also have also warned about the potential consequences if the Greenland ice sheet were to melt. Greenland’s melting ice mass is now the No. 1 driver of sea level rise, according to Paul Bierman, a scientist at the University of Vermont. If it melts completely, scientists project it could lead to 20 to 25 feet of sea-level rise.

Scambos said rising global temperatures linked to climate change have warmed oceans and generated new wind patterns that make these glaciers more susceptible to melting.

“It is very likely related to increasing greenhouse gasses in the atmosphere, which changed wind patterns around Antarctica, and therefore changed ocean circulation around Antarctica,” he said. “That’s the main culprit.”

Scientists project that without intervention, the Thwaites could completely disappear by the 23rd century.

In the ocean food chain, large sharks generally only have to worry about keeping orcas at bay — but a new study suggests the apex predators may have to watch out for their own.

Researchers have discovered evidence pointing to the first known case of a porbeagle shark — which can grow up to 12 feet long and 500 pounds — being killed by a large shark predator. The findings were published Tuesday in the biology journal Frontiers in Marine Science.

This isn’t the first case of “shark cannibalism,”  said Jon Dodd, executive director of the Atlantic Shark Institute, which helped lead the study. Larger sharks eating smaller sharks is a common occurrence, “in the open ocean, size matters, but there is always something bigger,” he said. 

In some cases — bull sharks, mako sharks and baby sand tiger sharks, for example — sharks will even eat their own species.

But cases of large sharks eating other large sharks, the subject of this study, are few and far between, said lead author Dr. Brooke Anderson, a marine biologist for the North Carolina Department of Environmental Quality. 

The fatality of the female porbeagle raises questions about whether this incident represents a wider trend among large predators, said Anderson. “With the advancements in technology, it’s possible that this happens more frequently than we’ve just really been able to discover,” said Anderson.  

The number of sharks eaten by other sharks is impossible to know, said Dodd adding, “but if our experiences at the Atlantic Shark Institute are an indicator, it might be more than we think.”

A group of scientific researchers from across the U.S. discovered the porbeagle death while conducting a satellite tracking project in the Northwestern Atlantic to better understand the shark species’ whereabouts, behaviors and environmental preferences. They were particularly curious about female porbeagles, which are known to traverse long swaths of the ocean to deliver their pups. 

“We were really seeking to understand the habitats used by the pregnant females and try to figure out where they might be going to give birth,” said Anderson.

The victim of the attack, nicknamed Penelope by researchers, was one of the 11 sharks scientists tagged off the coast of Cape Cod in 2020 and 2022. Tracking tags were placed on the dorsal fins of the sharks and used to collect information on water depth and temperature. The tags stored the data until they eventually fell off the sharks, at which point the data was transmitted back to the researchers via satellite.

The tracking devices were designed to stay on for a year, but five months into the experiment, Penelope’s data had already come in. “As soon as I got the data from that tag, I immediately knew something weird had happened,” Anderson said. 

A few days before Penelope’s tag popped off along the coast of Bermuda, the temperature of the water suddenly spiked. It remained relatively high, even when it reached 600 meters below sea level, which is “very unusual,” Anderson explained.

Anderson and her colleagues came to a harrowing conclusion: the porbeagle had been hunted and eaten by another behemoth of the sea. “The only explanation for that data is that this tab is now in the stomach of a predator,” Anderson told CBS News.

Researchers don’t know with 100% certainty what the culprit was, but the diving pattern of the predator, which researchers tracked by looking at the depth data collected by the tag, was similar to that of white sharks they’ve monitored in the past. “Based on that, it was likely, I’d guess, a mature female white shark,” said Anderson.

Porbeagles, which have historically been overfished, are considered endangered in certain parts of the world. Given they are already at risk, Anderson said the loss of pregnant females and their babies could prove devastating to the population.

And sharks aren’t the only ones that could feel the ripple effects of this change. The rulers of the deep maintain the balance of the underwater ecosystem by keeping smaller predator populations in check and adding vital nutrients to shallow waters. 

“Humans heavily rely on oceans for food and many other things and the oceans need healthy shark populations,” Anderson said. 

Last month, two young paddleboarders found themselves stranded in the ocean, pushed 2,000 feet from the shore by strong winds and currents. Thanks to the deployment of a drone, rescuers kept an eye on them the whole time and safely brought them aboard a rescue boat within minutes.

In North Carolina, the Oak Island Fire Department is one of a few in the country using drone technology for ocean rescues. Firefighter-turned-drone pilot Sean Barry explained the drone’s capabilities as it was demonstrated on a windy day. 

“This drone is capable of flying in all types of weather and environments,” Barry said. 

Equipped with a camera that can switch between modes — including infrared to spot people in distress — responders can communicate instructions through a speaker. It also can carry life-preserving equipment.

The device is activated by a CO2 cartridge when it comes in contact with water. Once triggered, it inflates into a long tube, approximately 26 inches long, providing distressed swimmers something to hold on to.

In a real-life rescue, after a 911 call from shore, the drone spotted a swimmer in distress. It released two floating tubes, providing the swimmer with buoyancy until help arrived.

Like many coastal communities, Oak Island’s population can swell from about 10,000 to 50,000 during the summer tourist season. Riptides, which are hard to detect on the surface, can happen at any time.

Every year, about 100 people die due to rip currents on U.S. beaches. More than 80% of beach rescues involve rip currents, if you’re caught in one, rescuers advise to not panic or try to fight it, but try to float or swim parallel to the coastline to get out of the current.

Oak Island Fire Chief Lee Price noted that many people underestimate the force of rip currents.

“People are, ‘Oh, I’m a good swimmer. I’m gonna go out there,’ and then they get in trouble,” Price said.

For Price, the benefit of drones isn’t just faster response times but also keeping rescuers safe. Through the camera and speaker, they can determine if someone isn’t in distress.

Price said many people might not be aware of it. 

“It’s like anything as technology advances, it takes a little bit for everybody to catch up and get used to it,” said Price.

In a demonstration, Barry showed how the drone can bring a safety rope to a swimmer while rescuers prepare to pull the swimmer to shore.

“The speed and accuracy that this gives you … rapid deployment, speed, accuracy, and safety overall,” Price said. “Not just safety for the victim, but safety for our responders.”