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Playlist: Science

Compiled By: Jeff Conner

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Big Picture Science (Series)

Produced by Big Picture Science

Most recent piece in this series:

De-Permafrosting

From Big Picture Science | Part of the Big Picture Science series | 54:00

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Above the Arctic Circle, much of the land is underlaid by permafrost. But climate change is causing it to thaw. This is not good news for the planet. 

As the carbon rich ground warms, microbes start to feast… releasing greenhouse gases that will warm the Earth even more.

Another possible downside was envisioned by a science-fiction author. Could ancient pathogens–released from the permafrost’s icy grip–cause new pandemics? We investigate what happens when the far north defrosts.

Guests:

Jacquelyn Gill – Associate professor of paleoecology at the University of Maine.

Jim Shepard – Novelist and short story writer, and teacher of English at Williams College, and author of “Phase Six.”

Scott Saleska – Global change ecologist, professor of Ecology and Evolutionary Biology at the University of Arizona, and co-founder of IsoGenie.

Originally aired September 6, 2021

Featuring music by Dewey Dellay and Jun Miyake

 

Sidedoor (Series)

Produced by Smithsonian

Most recent piece in this series:

Wild Orchid Mystery

From Smithsonian | Part of the Sidedoor series | 22:47

Side_door_logo_640x640_small You probably know orchids as the big, colorful flowers found in grocery stores and given as housewarming gifts. But those tropical beauties represent only a fraction of the estimated 25,000 orchid species worldwide. While their showy relatives fly off the shelves, North America’s more understated native orchids are disappearing in the wild. Scientists at the Smithsonian Environmental Research Center are working to protect these orchids and their habitats, but first they need solve a surprisingly difficult problem: how to grow one.

Planetary Radio (Series)

Produced by Mat Kaplan

Most recent piece in this series:

Subsurface granite on the Moon? The anatomy of a lunar hot spot

From Mat Kaplan | Part of the Planetary Radio series | 28:50

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A decades-old lunar mystery gets an update in this week's Planetary Radio. Matt Siegler from the Planetary Science Institute shares his team's surprising findings about the granite formation that might lie beneath Compton-Belkovich, a thorium-rich hot spot on the far side of the Moon. Then Bruce Betts, chief scientist of The Planetary Society, shares What's Up in the night sky.


Discover more at: https://www.planetary.org/planetary-radio/2023-subsurface-granite-on-the-moon

Climate One (Series)

Produced by Climate One

Most recent piece in this series:

2024-04-19 Artificial Intelligence, Real Climate Impacts

From Climate One | Part of the Climate One series | 58:59

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Artificial intelligence can do some pretty amazing things, including for the climate. But, as with most technology, there are significant trade offs. The energy used by AI is massive and growing. 

Tech giants like Microsoft, Google and Amazon are building enormous data centers to make AI possible. Karen Hao, a contributing writer for the Atlantic who also has an engineering degree from MIT, visited one of these data centers in Arizona. It was a 97 degree day, and the data center stretched on into the desert. Hao decided she would walk around it to get a visceral idea of how big it is. She says, “Within two legs of the rectangle. I just started feeling very, very heat exhausted and I'd run out of water. It had already taken me around 20, 25 minutes and I was like, I gotta get out of here.” Companies are making huge investments in giant data centers. Hao says Microsoft alone is spending around 10 billion a quarter now on data centers. 

Most of the hype right now is around generative AI. Think: ChatGPT. As a matter of fact, the G in ChatGPT stands for generative. The basic idea is that AI is being fed our data to train models that generate more data like that. Karen Hao says, “It's taking our writing to generate more writing. It's taking our images to generate more images.” 

But not all flavors of AI use the same amount of energy. Much of theAI that might benefit the  reasons is referred to as predictiveAI. Predictive AI tends to use existing data to help it make predictions, rather than generating new sentences or images the way generative AI does. For example: it might use our images to make a prediction about what's in another image. Hao says, “Like cancer detection systems or facial recognition systems.” And predictive AI uses far less energy. This is because predictive AI is trained on a specific task, and once it achieves the desired accuracy, its energy use falls dramatically. 

Predictive AI is also being used to track emissions. Climate TRACE, an independent greenhouse gas emissions tracker backed by former Vice President Al Gore, is one such organization. Gavin McCormick, Co-Founder of Climate TRACE, says, “we can see that some steel facilities pollute about 10 times more emissions than others to produce the same product.” That data helped companies like GM and Tesla switch to steel factories that produced less emissions. McCormick says, “Our hope is that this is a way that data can make it kind of painless to reduce emissions.” 

“AI is being used in all sorts of ways to facilitate climate action from things like helping us better forecast solar power on electric power grids in order to help us balance grids with large amounts of renewables,” says Priya Donti, Assistant Professor at MIT and Co-founder and Chair of Climate Change AI. Efficiency is one of the best ways to reduce carbon pollution. If we didn't need so much power, we wouldn't need to burn so much fossil fuel. With more efficiency we could switch to renewable energy more quickly. AI can help do that, even with simple tasks like optimizing heating and cooling systems in homes and buildings to save energy.  

Nowcasting is a weather forecasting model that combines a description of the current state of the atmosphere and a short-term forecast. Amy McGovern, Professor of Computer Science at the University of Oklahoma, says, “our current average [nowcasting] warning is about 15 minutes. Can you imagine if you could bring that up to 30 minutes or 60 minutes?”  McGovern also says, “As our climate is changing, a lot of these extreme weather events are changing. And I think AI can be used to help us improve our prediction and understanding of these events and, and be able to weather them better.”

Sound Ecology (Series)

Produced by Jessica Eden

Most recent piece in this series:

Sound Ecology: Native Bees

From Jessica Eden | Part of the Sound Ecology series | 01:28

Sound_ecology_logo_small An audio postcard highlighting native bees -- including nuances of their behavior, life history and ecological importance.

Got Science? (Series)

Produced by This Is Science With Jess Phoenix

Most recent piece in this series:

Lean, Clean, Green Machines

From This Is Science With Jess Phoenix | Part of the Got Science? series | 29:01

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In this episode

Colleen talks to Bridget and Paula about:

  • the modeling and analysis that shows how states can reach 100% renewable energy by 2035
  • what policies are needed to reach an equitable transition
  • what a just and sustainable future could look like

A Moment of Science (Series)

Produced by WFIU

Most recent piece in this series:

AMOS 24-100: Extremophiles Go to The End of the Earth—and Thrive There, 5/20/2024

From WFIU | Part of the A Moment of Science series | 02:00

Mos-fullcolor-rgb-stacked_small Extremophiles Go to The End of the Earth—and Thrive There

Bioneers - Revolution From the Heart of Nature (Series)

Produced by Bioneers

Most recent piece in this series:

10-15: A Love That Is Wild: Why Wilderness Matters in the 21st Century, 5/1/2024

From Bioneers | Part of the Bioneers - Revolution From the Heart of Nature series | 28:30

Terry-175_175_small Writer, naturalist and activist Terry Tempest Williams asks “Can we love ourselves, each other and the Earth enough to change?” She invokes our deepest humanity to honor and protect the wilderness that’s the cauldron of evolution – and of our own imagination. “Our power lies in the love of our homelands,” she tells us in this eloquent, heartfelt tour-de-force, and protecting the wild requires bringing democracy home.

The 90-Second Naturalist (Series)

Produced by WGUC/ WVXU

Most recent piece in this series:

90 Second Naturalist – April 2024 Modules”

From WGUC/ WVXU | Part of the The 90-Second Naturalist series | 33:00

Nsn_podcast_logo_small 90-second modules that celebrate the natural world and bring the wonder of nature into daily life.

This Week in Water (Series)

Produced by H2O Radio

Most recent piece in this series:

This Week in Water for April 21, 2024

From H2O Radio | Part of the This Week in Water series | 06:09

H2o_logo_240_small The Biden administration made 13 million acres of wilderness in Alaska off limits to oil drilling and mineral mining.

Manufacturers of toxic “forever chemicals” may now be on the hook to clean them up.

A lab accident has revealed an amazing superpower of queen bees.

The next “gold” rush? Head to oil and gas waste sites.