Solve for X: Innovations to Change the World

MaRS Discovery District
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Apr 24, 2025 • 24min

Compounding the cure: How our overzealous efforts to zap infections could be making animals — and humans — sicker

Experts are calling antimicrobial resistance the silent pandemic: Each year, AMR is responsible for more than a million deaths around the world. It’s a threat to our health that’s been exacerbated by the very medications used to treat it. This problem has been growing for decades, and healthcare practitioners have responded by developing new antibiotics. “And then,” says Dr. Scott Weese, a global expert in antimicrobial resistance, “we started running out of antibiotics.” To address the rise of drug-resistant pathogens, we need to examine how we use these medications to treat disease in both humans and animals, says Weese. The question is, how can we safeguard the life-saving drugs we have — while also protecting the health of all creatures on this planet?Featured in this episode: Dr. Scott Weese is a veterinary internal medicine specialist, chief of infection control and director of the Centre for Public Health and Zoonoses at the University of Guelph’s Ontario Veterinary College. Weese is a member of the Global Leaders Group on antimicrobial resistance and has helped craft antimicrobial use guidelines for veterinarians in Canada. Further reading: The global threat of antibiotic resistanceAt the UN, world leaders are negotiating the biggest health issue you’ve never heard ofThree million child deaths linked to drug resistance, study showsDo I need that antibiotic?Veterinary medicine is key to overcoming antimicrobial resistanceThe link between pets, people and antimicrobial resistanceCanada introduces new guidelines to tackle antimicrobial resistance Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Mar 20, 2025 • 30min

Waste opportunity: Can we design plastic out of healthcare?

Modern medicine has a dirty secret. While plastics have revolutionized healthcare, research increasingly shows that they’re also making us sick. Items such as PPE, syringes, gowns, IV bags and protective wrappings have allowed for a higher standard of sanitary patient care that vastly reduces the risk of cross-contamination. But all that plastic is adding up. Nearly a third of healthcare waste is plastics, and a report on 110 Canadian hospitals revealed the combined waste adds up to 87,000 tons of waste each year. These items break down into microplastics, which accumulate in our bodies and contribute to neurodegenerative, reproductive and overarching health problems. But what will it take to reimagine healthcare without plastic?Featured in this episode: Journalist Susan Freinkel is the author of Plastics: Toxic A Love Story, a book that traces the history of plastics through eight different objects, from the Frisbee to the IV bag, and examines how plastic negatively affects our lives.Dr. Ted Schettler is a physician and expert on the health risks of plastics and phthalates. He’s the scientific advisor at Health Care Without Harm, an organization that has dedicated more than 30 years to reducing healthcare’s environmental impact, including the removal of mercury from medical devices.An anesthesiologist for more than 20 years, Dr. Lyndia Dernis has seen first-hand the amount of plastic waste operating rooms produce. Currently practicing at St. Mary’s Hospital Centre in Montreal, Dernis has spearheaded the Anesthesia and Environment Committee, which has drastically reduced and recycled the hospital’s plastic waste since being implemented in 2020.Rashmi Prakash is the CEO of Aruna Revolution, a Halifax-based startup producing sustainable menstrual products. She’s also an adjunct professor at UBC, where she teaches a course on the impact of biomedical engineering on society, sustainability and environmental stewardship. As a biomedical engineer, Prakash has seen the surplus use of single-use plastic medical devices wrapped in single-use plastics, the layers of which she likens to a Russian doll.Aditi Sitolay is a masters student of medical device design and entrepreneurship at Imperial College London. She’s also the founder of Synoro Med, a Vancouver-based startup that specializes in designing sterile, reusable medical devices, including an early-prototype IV bag.Further reading: Solving healthcare’s emissions problemYour brain could have a spoon’s worth of microplastics. Here’s what to do about itWe tested our blood for microplastics. This is what we foundMicroplastics: Are we facing a new health crisis — and what can be done about it?Prescription for plastic medical waste: How hospitals, medical suppliers are aiming to be greener Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Feb 13, 2025 • 25min

Fire alarm: Rethinking innovation in an increasingly volatile world

The wildfire that devastated Fort McMurray in 2016 burned more than 579,000 hectares of land, drove 88,000 people from their homes and caused nearly $10 billion in damages. It’s often seen as an outlier, a freak natural disaster. But extreme wildfires, like those that tore through Los Angeles earlier this year, are becoming more intense and harder to control. “We all saw the smoke, and too many of us have seen the fire,” says John Vaillant, author of Fire Weather: The Making of a Beast. “Weather is different now, and fire is different now.” Hotter, drier weather is turning our forests into kindling, and emergency responders are struggling to handle our new reality: intense, unpredictable fires fuelled by a changing climate. In this special episode, host Manjula Selvarajah sits down with Vaillant to better understand how we got here and to see if there is any way out.Featured in this episode: John Vaillant is a Vancouver-based author and freelance journalist. His latest work, the Pulitzer Prize–nominated Fire Weather: The Making of a Beast, chronicles how the 2016 Fort McMurray wildfire turned entire neighbourhoods into firebombs and destroyed 2,400 homes and businesses. Further reading: Forged by fire: Fort McMurray 5 years after the disasterCanada needs to get ready for a future fraught with fire: How can the forest sector respond?FACT SHEET: Climate change and wildfiresCanada’s 2023 wildfires emitted more carbon than most countriesLandscapes turned into hellscapes, shock and the ongoing fight against wildfires in Los AngelesLos Angeles wildfires magnify California’s “insurance crisis” as homeowners face billions in lossesSubscribe to Solve for X: Innovations to Change the World here. And below, find a transcript to “Fire alarm: Rethinking innovation in an increasingly volatile world.” This interview was recorded at MaRS Climate Impact on December 4, 2024. Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Jan 23, 2025 • 25min

Cracking the code: How generative biology could transform medicine

Can AI unravel the mysteries of human biology? Could it help design specialty treatments and cures for disease? Geoffrey von Maltzahn and his team at Generate:Biomedicines are bullish on both counts. AI has greatly accelerated progress in genome engineering, bioengineering and nanotechnology and they are getting closer to developing tailored therapeutics. “Six years ago, this was a crazy idea,” he says. “We’re now convinced that 100 percent of protein therapeutics are going to get created this way.” In this special episode of Solve for X, host Manula Selvarajah sits down with von Maltzahn to talk about where the science is now and where it is headed.  Featured in this episode: Geoffrey von Maltzahn, general partner of  Flagship Pioneering, is an inventor and entrepreneur who works at the intersection of biology and artificial intelligence, a specialization that makes him a world-renowned leader in generative biology.  Further reading: How generative biology can wipe out our most devastating diseases — for goodHow technology is tackling questions that confound modern medicineHow we can deliver a better tomorrow through generative biologyThe frontiers of generative biology | MaRS Impact Health 2024Subscribe to Solve for X: Innovations to Change the World here. And below, find a transcript to “Cracking the code: How generative biology could transform medicine.” This interview was recorded at MaRS Impact Health in June 2024. Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Dec 19, 2024 • 40min

Innovation hotline: Answering the tech sector’s burning questions

For many in Canada’s tech sector, 2024 was a challenging year. At times, it seemed as if the only constant — whether it was the economy, geopolitical relations or health of the planet — was uncertainty. To take stock of the past year and look ahead to 2025, we reached out to members in the innovation community to hear what’s on their minds. Can tech help fix Canada’s productivity crisis? What will it take to foster real change? In the first call-in episode of the MaRS podcast, Solve for X, MaRS CEO Alison Nankivell answers their questions and shares her perspective on what it will take for Canadian startups to scale, improve inclusion and prepare for a rapidly changing world. Featured in this episode: Alison Nankivell has spent more than 25 years moving Canada’s economic needle forward. Before being named CEO of MaRS in early 2024, Alison held pivotal roles at the Business Development Bank of Canada (BDC), the Ontario Teachers’ Pension Plan and Export Development Canada (EDC). At MaRS, she brings an experienced playbook to support startups working in climate, health and emerging technology. Kris Bennatti is the CEO and co-founder of Hudson Labs, a Toronto-based startup that builds specialized financial software to help improve corporate accountability in capital markets. Lise Birikundavyi is the co-founder and managing partner of BKR Capital, Canada’s first Black-led, institutionally-backed VC fund. Birikundavyi is a finance specialist who has worked with several international institutions, including the Jacobs Foundation where she managed its edtech impact investment strategy.  Corey Ellis is the co-founder and CEO of Growcer. The Ottawa-based startup develops commercial hydroponic systems that help communities grow indoor produce, year-round in any climate.   Charles Plant is a serial entrepreneur, innovation economist, fractional CFO and founder of The Narwhal Project, which helps tech startups raise capital and scale business.  Further reading: Welcome to the $100-million clubUndervalued and ignored: Why young Canadian firms are looking to foreign investors and buyers Evolving ESG reporting regulations call for co-ordinated executive action in CanadaDEI in Canadian workplaces is hitting a wall, subscriber survey showsNorth American outlook: Uncertain political environment adds to business, consumer fatigueClimate adaptation is as important as climate mitigationSubscribe to Solve for X: Innovations to Change the World here. And below, find a transcript to “Innovation hotline: Answering the tech sector’s burning questions.” This interview was recorded October 17 in the MaRS Studio.  Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Nov 21, 2024 • 34min

Soak it up: Can sponge cities save us from flooding?

As the effects of climate change trigger record-breaking rainfall and flooding, cities from Montreal to Mumbai are re-thinking how urban design can keep inhabitants safe from natural disasters. Kongjian Yu, a landscape architect based in Beijing, has a counterintuitive idea. Instead of fighting water by building more dams, sewers and pipes, he proposes we let it in, designing nature-based infrastructure that can absorb run-off. His principles have been adopted by the Chinese government and implemented in hundreds of municipalities. Could this nature-based approach help us adapt to a changing climate? Featured in this episode: Kongjian Yu is a Beijing-based landscape architect and founder of Peking University’s College of Architecture and Landscape. His concept of sponge cities — designing cities to absorb water — is being applied in urban areas across the globe.  Further reading:Landscape architect Kongjian Yu, pioneer of the “sponge city" concept, wins the 2023 Oberlander PrizeHow letting water be water can lead to better climate resilienceKongjian Yu has a plan for urban flooding: “Sponge cities”Treading water — Toronto is spending billions on flood protection, but experts say it needs to spend billions moreWill a $1-billion flooding bill finally make the GTA take stormwater seriously?Toronto’s Don River floods offer urgent planning lessons for climate-challenged cities Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Oct 24, 2024 • 34min

Striking a chord: Why neuroscientists believe music could hold the power to cure what ails us

Music makes us feel better — for most of us, this is an intuitive truth. But scientists are only now beginning to understand the remarkable ways that music affects our brains. With the help of innovation, researchers are working to assess and codify the whats, whys and hows that could help us harness this power as a therapeutic tool to treat people grappling with everything from mood disorders to Parkinson’s disease. Their data is helping prove that music could be one of our most vital, valuable and accessible forms of medicine. Featured in this episode:Dan Levitin is a best-selling author, music producer, renowned neuroscientist and professor emeritus in psychology at McGill University. His latest book, I Heard There Was a Secret Chord: Music as Medicine was released in August. Frank Russo is a cognitive neuroscientist and psychologist who serves as the chief science officer at LUCID, a Toronto-based company that uses AI to create personalized music therapy to help people with mental health challenges. He’s also a professor of psychology at Toronto Metropolitan University, where he heads up the Science of Music Auditory Research and Technology (SMART) lab. Jessica Grahn is a neuroscientist and a professor at Western University. She studies how the brain processes music and its power to activate music in people with mobility issues brought on by neurodegenerative diseases like Parkinson’s. Charlotte Cumberbirch is a professional choral singer who leads an online vocal health group for older adults at the Cummings Centre in Montreal. Many of her participants are recovering from strokes or dealing with brain diseases, such as Parkinson’s. Further reading:The sound of science: How music can transform our brainsAI to benefit humanity: Innovations in senior careThe big idea: could we use music like medicine?AI is unlocking the human brain’s secretsHow does music affect your brain? This is your brain. This is your brain on music Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Sep 27, 2024 • 51sec

Solve for X S3 Trailer

In season 3 of Solve for X, we meet the innovators and entrepreneurs solving for climate change, economic disparity, diseases and more. Subscribe and listen beginning September 26. Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Sep 26, 2024 • 25min

The methane hunter: Meet the man who is tracking down emissions — from space

With more than 80 times the short-term warming power of carbon dioxide, methane is a significant climate threat. But finding and fixing methane leaks is no small feat and ground-based detection methods struggle to pinpoint this colourless, odourless gas. In this episode of Solve for X, host Manjula Selvarajah sits down with Stéphane Germain to discuss how his company’s fleet of microsatellites is transforming methane detection. By capturing data from orbit, this satellite technology offers new insights into methane sources, reshaping how we monitor and reduce emissions for a cleaner future.Featured in this episode:Stéphane Germain is the CEO and founder of GHGSat, a global leader in satellite-based methane monitoring. With a background in aerospace engineering, he leads the development of microsatellites that detect greenhouse gas emissions from space, delivering critical data for climate action.Further reading: UN climate summit host Azerbaijan’s gas flaring hits decade-high, study showsHow MethaneSAT Will Track an Invisible Climate Menace From SpaceGlobal methane emissions rising at fastest rate in decades, scientists warnMethane emissions from gas flaring being hidden from satellite monitorsNew satellite will detect and share CO2 data from individual facilities Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 
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Jan 4, 2024 • 25min

Beast mode: Can technology help protect some of the world’s most endangered animals?

We’re facing a global ecosystem crisis. Within the last 50 years alone, wildlife populations across the world have declined by a shocking 69 percent. But technology, with help from citizen science, is emerging as one of wildlife’s greatest allies. In this episode of Solve for X, we explore how remote sensing, robot boats and DNA analysis could revolutionize wildlife preservation, offering hope for everything from insects to whales.Featured in this episode: James Snider is the vice president of science, knowledge and innovation at World Wildlife Fund Canada.  Elizabeth Clare is an associate professor of biology at York University in Canada. Her research studies biodiversity at all levels, developing novel genetic methods that address some of the biggest challenges in biodiversity science.Peter Fretwell is a scientist at the British Antarctic Survey. He’s the principal investigator of the Wildlife From Space Program, studying wildlife using satellite imagery.Madeleine Bouvier-Brown is a marine project scientist at Open Ocean Robotics. She handles the deployment of robot boats, retrieving data and analyzing it to deepen our understanding of the oceans.Further reading:Loss of sea ice causes catastrophic breeding failure for emperor penguinsAdventure on high seas inspired ocean droneGlobal wildlife populations have declined by 69 percent since 1970, WWF report findsScientists can suck animal DNA literally out of thin airCaribou are vanishing at an alarming rate. Is it too late to save them? Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com. 

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