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Heroes

A scientist who has studied polar bears for 34 years is starting to get really worried.

Even after half a lifetime studying polar bears in some of Earth's least hospitable climates, Andrew Derocher still gets nervous trying to tag a 1,000-pound bear on a frozen slab of ice in the open water.

"[The bears] are not worried about being out there, but it’s just not good enough for us," he says.

Photo by Andrew Derocher.


To human researchers, sea ice may be a rickety death trap, but to polar bears, it's a little like a cross between a superhighway, a forest, and an old memory-foam mattress. It's the surface over which they travel, where they hunt, and occasionally, where they mate.

And increasingly, Derocher warns, there is less of it to go around:

"We can quibble amongst ourselves as scientists, but the overwhelming scientific consensus is absolutely clear: Polar bears are in trouble."

The ice that supports polar bear populations from Canada to Alaska to Russia to Norway is disappearing — rapidly.

Across the Arctic, the trouble signs are difficult to miss. The bears are getting smaller, they're reproducing less frequently, and very young and very old bears are dying at higher rates.

For the past two weeks, Derocher has been tweeting a series of alarming maps and images that illustrate what polar bears are up against.

Like this one that shows in dark red how much sea ice is missing:

And this one that shows the decline of sea ice coverage:

And this one that shows the decreasing number of days with sea ice per year:

Derocher and his colleagues at the University of Alberta use satellite radios to track the bears' movements.

Since the early 1980s, Derocher has studied thousands of bears over thousands of miles. Some of the bears he tracks today are the great-great-grandchildren of the bears he began his career working with.

By monitoring when the bears walk onto the ice and when they return to shore, they can estimate the number of "ice-free" days the bears will see that year. 180 "ice-free" days is considered a danger zone for the species.

"Once we get beyond about 210 days, we probably no longer have sufficient ice to maintain a viable population," Derocher explains.

In Canada's Western Hudson Bay, the no-ice period is hovering around 150-160 days — but, thanks to climate change, that number is jumping up by an average of three to six weeks per decade.

A few extra weeks without access to the ice can mean the difference between life and death for animals that burn up to two pounds of energy every day they're on land.

Less sea ice means the bears have to travel more, which means they have to kill more seals while they can. Since most of their hunting is done on the ice, that window becomes shorter the later the seas freeze — creating a conundrum wherein the bears have less time in which they're forced to hunt more efficiently and productively.

Derocher working on the ice. Photo by Andrew Derocher.

If they fail to hunt enough, their body fat stores won't last the length of the ice-free season. With lower body fat stored, female bears stop producing milk earlier, leading to higher cub mortality.

Derocher's prognosis for the arctic ambassador species is dire.

Within the next few decades, he estimates, there will be significantly fewer polar bears. By the end of the 21st century, there may be such a reduction in the species' range that future populations may or may not be viable.

"Every time we look at a new study, there’s pretty much no good news for polar bears," he says.

With current planetary warming trends, Derocher fears the decline is not reversible in the short term.

Long term, saving the species might mean making some sacrifices — financial, political, or otherwise.

"In our own house, we had to replace some windows, and we opted to pay the extra money for triple pane to save on energy," he says.

Any U.S. push to return to coal, he fears, would be a disaster for the species, although he does see some cause for optimism in recent business efforts to combat climate change.

Ultimately, he believes, polar bear fans simply need to understand what's going on if the species is going to continue surviving against heavy odds.

Photo by Andrew Derocher.

"There’s nothing in the scientific literature that supports anything but grave concern," he says.

The first step toward getting the bears back on track, he maintains, is getting the public to care about conserving sea ice.

The second is people "voting with their wallet" and rewarding companies that are reducing their carbon footprint.

The third is supporting politicians like those in his home province of Alberta who favor policies like higher carbon taxes — though he believes most could be doing much more.

That might be the species' best hope.

"It’s got to change," Derocher insists. "The way we live on this planet has got to change."

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Three women, three MS journeys: How multiple sclerosis looks different for everyone

Gina, Nathalie and Helga share their reactions to being diagnosed with MS and how they stay informed and positive in the face of ever-changing symptoms.

Courtesy of Sanofi

Helga, Nathalie and Gina all have MS, and their experiences show how differently the disease can manifest.

True

It’s been 155 years since neurologist Jean-Martin Charcot gave the first lecture on a mysterious progressive illness he called “multiple sclerosis.” Since then, we’ve learned a lot. We know MS causes the immune system to attack healthy tissue, including damaging the brain and spinal cord. Resulting symptoms can be debilitating and include fatigue, blurred vision, memory problems and weakness. Huge advancements in our understanding of MS and its underlying causes, as well as treatment advances, have been made in the past few decades, but MS remains a complex and unpredictable reality for the 2.8 million+ people diagnosed around the world.

Ironically, the only real constant for people living with MS is change. There’s no set pattern or standard progression of the disease, so each person’s experience is unique. Some people with MS have mild symptoms that worsen slowly but sometimes improve, while others can have severe symptoms that drastically alter their daily lives.

All people with MS share some things in common, however, such as the need to stay informed on the ever-evolving research, find various lines of support and try to remain hopeful as they continue living with the disease.

To better understand what navigating life with MS really looks like, three women shared their MS stories with us. Their journeys demonstrate how MS can look different for different people and interestingly, how the language used to talk about the disease can greatly impact how people understand their realities.

woman with horse, woman riding horseGina loves riding her horse, Benita.Courtesy of Sanofi

Gina—Hamburg, Germany (diagnosed with relapsing multiple sclerosis in 2017)

When her youngest son was 4 months old, Gina started having problems with her eye. She’d soon learn she was experiencing optic neuritis—her first symptom of MS.

“Immediately after the diagnosis, I looked up facts on MS because I didn’t know anything about it,” Gina says. “And as soon as I knew what could really happen with this disease, I actually got scared.”

As her family’s primary income provider, she worried about how MS would impact her ability to work as a writer and editor. Her family was afraid she was going to end up in a wheelchair. However, for now, Gina’s MS is managed well enough that she still works full-time and is able to be active.

“When I tell somebody that I have MS, they often don't believe me the first time because I don't fulfill any stereotypes,” she says.

Overwhelmed by negative perspectives on living with MS, Gina sought support in the online MS community, which she found to be much more positive.

“I think it’s important to use as many positive words as you can when talking about MS.” It’s important to be realistic while also conveying hope, she says. “MS is an insidious disease that can cause many bad symptoms…that can be frightening, and you can't gloss over it, either.”

To give back to the online community that helped her so much, Gina started a blog to share her story and help others trying to learn about their diagnosis.

Though she deals with fatigue and cognitive dysfunction sometimes, Gina stays active swimming, biking, riding horses and playing with her sons, who are now 11 and 6.

Cognitive dysfunction is common in MS, with over half of people affected. It can impact memory, attention, planning, and word-finding. As with many aspects of MS, some people experience mild changes, while others face more challenges.

Gina says that while there’s still a lot of education about MS needed, she feels positive about the future of MS because there’s so much research being done.

woman in wheelchair holding medal, woman rowingNathalie is an award-winning rower with multiple international titles.Courtesy of Sanofi

Nathalie — Pennes Mirabeau, France (diagnosed with relapsing-remitting multiple sclerosis in 2002)

Nathalie was a teenager and a competitive athlete when she noticed her first symptoms of MS, but it would take four years of “limbo” before she was diagnosed.

“Ultimately, the diagnosis was more of a relief, than a shock,” she says. “Because when you have signs and you don’t know why, it’s worse than knowing, in the end, what you have.”

However, learning more about the disease—and the realities of disease progression—scared her.

“That glimpse of the future was direct and traumatic,” she says. Her neurologist explained that the disease evolves differently for everyone, and her situation might end up being serious or very mild. So, she decided to stop comparing herself to others with MS.

She said to herself, “We’ll see what happens, and you’ll manage it bit by bit.”

By 2005, Nathalie’s MS had progressed to the point of needing a wheelchair. However, that has not dampened her competitive spirit.

Nathalie began her international rowing career in 2009 and has won multiple world titles, including two Paralympic medals—silver in London and bronze in Tokyo. Now, at 42, she still trains 11 times a week. Fatigue can be a problem, and sometimes hard workouts leave her with muscle stiffness and shaking, but she credits her ongoing sports career for helping her feel in tune with her body’s signals.

“Over the years, I’ve learned to listen to my body, letting my body guide when I need to stop and take breaks,” she says.

Nathalie explains that she used to only look backwards because of the initial shock of her diagnosis. In time, she stopped thinking about what she couldn’t do anymore and focused on her future. She now lives in the following mindset: “Even when doors close, don’t miss out on those that open.” Instead of focusing on what she can’t do, she focuses on the opportunities she still has. Right now, this includes her training for the 2024 Paralympic Games in Paris, where she will compete for another rowing medal.

“I only go forward,” she says. “Well, I try, anyway…It’s easy to say, it’s not always easy to do. But that’s what I try to do.”

woman exiting water after swimming, woman with great daneHelga's Great Dane has become a helpful and beloved companion.Courtesy of Sanofi

Helga—Johannesburg, South Africa (diagnosed with relapsing multiple sclerosis in 2010)

When Helga first started having balance issues and numbness in her feet, she chalked it up to her training as a runner. But when the numbness moved to her face, she knew something was wrong. She never guessed it was MS.

“When I was diagnosed, I felt completely overwhelmed and clueless,” Helga says. “I felt that I had nowhere near enough information. I did not know anything about the disease…I had no idea that it was going to be a process of continually monitoring and adjusting your lifestyle.”

In the beginning, Helga’s symptoms developed slowly, and she didn’t appear ill to others. She was even able to run for a few years after her diagnosis, but she couldn’t do marathons anymore, and she began to fall frequently due to balance issues and right-foot dragging. Then her cognition issues became more problematic, especially in her job as a trainer in a printing company.

“My executive function, decision-making and short-term memory were affected to the point that I was eventually medically unfit for work,” she says. She stopped working in 2017.

However, she didn’t stop living life. Even though she could no longer run, she continued to swim competitively. She got a Great Dane puppy and trained him as a service dog to help her walk. She also serves as vice chair of the patient support organization Multiple Sclerosis South Africa, and she advises others who have been diagnosed to join a patient advocacy group as soon as possible to get reliable information and meet others with MS.

Helga says she is “hopeful” about the future of MS. “I must say that I am so grateful that we have all the new medications available, because my life would not be the same if it wasn't for that,” she adds.

Part of how she manages her MS is by looking at the positives.

“If I could tell the world one thing about MS, it would be that MS is an incurable disease of the nervous system, but it's also the greatest teacher of valuing your health, family, friends, and managing change in your life,” she says. “My life is diversified in a way that I never, ever thought it would, and MS has been honestly the greatest teacher.”

Each MS journey is unique – with each person impacted experiencing different struggles, successes, and feelings as they manage this unpredictable disease. But the common thread is clear – there is a critical need for information, support, and hope. We are proud to participate in World MS Day and share these incredible stories of living life while living with MS. To learn more about MS, go to https://www.sanofi.com/why-words-really-matter-when-it-comes-to-multiple-sclerosis.

MAT-GLB-2301642-v1.0-05/2023

This article was sponsored by Sanofi. Participants were compensated when applicable.

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