Positive Charge by GeekWire – Détails, épisodes et analyse

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Positive Charge by GeekWire

GeekWire

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Fréquence : 1 épisode/9j. Total Éps: 5

Positive Charge by GeekWire explores the technology breakthroughs working to solve the planet's biggest environmental and sustainability challenges. Hosted by GeekWire's Lisa Stiffler and audio producer Laura Scott, each episode goes inside the labs, companies, and wild places of the Pacific Northwest — and beyond — to meet the creators, champions, and consumers bringing bold climate innovations to life.

This is a podcast about hope. The planet faces real challenges, but there are smart, passionate people working hard to address them — whether they're chasing clean energy, treating persistent "forever chemicals," or rethinking sustainability from the ground up. We profile those people and the breakthroughs giving us reason for optimism.

Brought to you by Amazon Sustainability.

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🇺🇸 États-Unis - naturalSciences
08/08/2026
#79
🇺🇸 États-Unis - naturalSciences
07/08/2026
#75
🇺🇸 États-Unis - naturalSciences
06/08/2026
#82
🇺🇸 États-Unis - naturalSciences
01/08/2026
#81
🇺🇸 États-Unis - naturalSciences
28/07/2026
#83
🇺🇸 États-Unis - naturalSciences
27/07/2026
#82
🇺🇸 États-Unis - naturalSciences
26/07/2026
#66
🇺🇸 États-Unis - naturalSciences
25/07/2026
#81
🇺🇸 États-Unis - naturalSciences
24/07/2026
#52
🇺🇸 États-Unis - naturalSciences
23/07/2026
#56

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Fusion energy: Wishing upon a star in a jar

mardi 30 juin 2026 • Durée 35:01

Fusion has long been the holy grail of clean energy — perpetually promising, perpetually out of reach. But dozens of startups are getting closer to harnessing the reactions that power the sun and stars. We go inside two Washington state fusion companies that are leading the charge — Helion Energy and Zap Energy — and breaks down their technologies in a way that doesn't require a degree in physics to understand.

Between the two, Helion has the swagger. The 13-year-old startup has a charismatic, enthusiastic CEO who signed an unprecedented agreement to sell fusion energy to Microsoft for a data center campus in Central Washington. That deadline is only two years out as Helion leverages a $1.5 billion war chest to become the first company in the world to commercially produce electricity from fusion.

Zap launched in 2017, but members of its founding team began working on their core technology decades earlier at the University of Washington. The startup has raised $330 million from investors and was selected for a competitive Department of Energy fusion program. Ambitious by the very nature of its work, Zap is also more cautious in its approach.

This episode explores Helion and Zap’s strategies and each of their recently revealed, unexpected course corrections — moves that either raise concerns or signal smart new approaches.

Sources and references

Interviews:

David Kirtley, Helion Energy, CEO and co-founder
Manav Singh, Helion Energy, director of electrical engineering
Matthew Thompson, Zap Energy, senior vice president of fission technology and former vice president of systems engineering and pulsed power
Laura Berzak Hopkins, Princeton Plasma Physics Laboratory, associate laboratory director for Strategy and Partnerships, and deputy chief research officer

GeekWire’s related coverage:

This episode was hosted by Lisa Stiffler and Laura Scott, and edited and produced by Laura Scott, with editorial assistance from Todd Bishop. Sponsored by Amazon Sustainability.

See omnystudio.com/listener for privacy information.

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Eternal no more: The quest to destroy PFAS 'forever chemicals'

mardi 30 juin 2026 • Durée 34:44

Can we actually annihilate the toxic "forever chemicals" polluting our water and soil? The debut episode of Positive Charge dives into the Herculean challenge of destroying PFAS — long-lived contaminants linked to serious health effects like cancer and immune suppression. Even the most rugged, pristine corners of Alaska are facing high levels of PFAS groundwater contamination.

Fortunately, a wave of intrepid entrepreneurs are building breakthrough technologies to prove these chemicals aren't as immortal as their name suggests. The episode goes inside two innovative companies tackling the crisis from completely different angles. First, we explore a system that deploys highly portable, shipping-container-sized units to superheat and destroy highly concentrated PFAS stockpiles directly on-site.

Then, the focus shifts to a technology that spun out of a sanitation project funded by Bill Gates. This system utilizes intense thermal "poop briquette" boilers to incinerate diluted PFAS from municipal wastewater while generating clean electricity. Tune in to find out how these real-world solutions might just close a massive global infrastructure gap and protect our environment.

Sources and references

Interviews:

Brian Pinkard, Aquagga, co-founder and chief technology officer
Heather Koponen, Fairbanks, Alaska, resident impacted by PFAS
Stephanie Dotterer, Sedron Technologies, director of strategy
Meghan Carlo, Sedron Technologies, senior permit manager

Additional sources:

Bill Gates drinking water from sewage waste (Gates Notes)
‘Forever chemicals’ are eternal no more thanks to a pollution destroying device from Tacoma startup (GeekWire)

Introducing 'Positive Charge' by GeekWire

vendredi 26 juin 2026 • Durée 01:47

Can we annihilate the "forever chemicals" in our soil and water? What's the greenest thing you can do with your body after you die? And how do we fix Taylor Swift's jet-fuel PR problem?

Positive Charge by GeekWire is a new podcast about environmental hope, and the people and companies building breakthrough technologies in climate and sustainability. Hosted by GeekWire's Lisa Stiffler and independent audio producer Laura Scott, each episode takes you inside the labs and companies working to save the planet, and out to the wild places they're trying to protect.

Follow now: the first episodes are on the way. Brought to you by Amazon Sustainability.

See omnystudio.com/listener for privacy information.

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The greenest goodbye: Human composting and the science of becoming soil

mercredi 22 juillet 2026 • Durée 32:58

What if the greenest thing you ever do is die? This episode of Positive Charge digs into human composting — the process, also called natural organic reduction, that turns a body into clean soil instead of ash or embalmed remains. It's the end-of-life option Martha Stewart says she wants, and a Seattle entrepreneur is the reason it exists.

Katrina Spade set out to build a climate-friendly alternative to cremation and burial while still a graduate student in architecture, drawing on a practice farmers have long used to compost livestock. Turning that idea into a business meant clearing two enormous hurdles: engineering a process that safely breaks a body down into soil in a matter of weeks, and rewriting laws that made the practice illegal in all 50 states. We go inside Recompose, her Seattle facility, where bodies rest in stainless steel vessels and naturally occurring microbes generate all the heat that does the work.

Then the episode turns to the people signing up. Interest cuts across the political map, with as many customers coming from conservative Eastern Washington as from Seattle, and a surprising share of them are young. Tune in to hear why composting is catching on as death care, how the science actually works, and what it means to choose becoming soil.

Sources and references

Interviews:

Katrina Spade, founder and CEO of Recompose
Micah Truman, founder and CEO of Return Home
Elyssa Tappero, customer of Recompose and tsunami program manager for the Washington Emergency Management Division

Additional sources:

Lynne Carpenter-Boggs, chair of the Department of Crop and Soil Sciences at Washington State University

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