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[Cooling the Planet: Exploring Geo-Solar Engineering]-[A Sunbrella For The Planet (6/10/19)]

Wow in the World · B1 · 2019-06-10

Preschool Enlightenment
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📋 Summary

Cooling the Planet: Exploring Geo-Solar Engineering

In this episode of Wow in the World, hosts Mindy and Guy Raz explore the science behind rising global temperatures and innovative, albeit experimental, solutions to mitigate the effects of climate change. Through a lighthearted beach-themed discussion, they break down complex atmospheric science into accessible concepts for their young audience.

Weather vs. Climate: Understanding the Difference

As the hosts grapple with a scorching heat wave, they clarify a fundamental scientific distinction: the difference between "weather" and "climate." Guy Raz explains that while weather describes the conditions in our atmosphere on a "week-to-week" basis, climate refers to the "larger patterns in our atmosphere that progress occur over several decades." This distinction is crucial because the current "changing climate"—a term many scientists prefer over "global warming"—is leading to more "extreme weather" events, such as the intense heat waves and potential hurricanes or snowstorms that characterize a planet out of balance.

The Concept of Geo-Solar Engineering

Mindy introduces a fascinating research project from Harvard University centered on "geo-solar engineering." This process involves humans "purposely altering the atmosphere to try and lower the global temperature." The proposed method mimics a natural phenomenon observed after "volcanic eruptions," where debris and sulfur spewed into the atmosphere act as a "giant parasol," blocking sunlight and cooling the planet. For example, a 1963 volcanic eruption in Indonesia was found to have lowered the Earth’s average temperature by 0.7 degrees Fahrenheit by creating this natural shading effect.

Using Calcium Carbonate as a Shield

The researchers suggest using "calcium carbonate"—the same substance found in "snail shells and limestone"—to create a similar effect. By releasing particles of this reflective chemical into the atmosphere via a "specialized weather balloon," scientists hope to reflect sunlight back into space. Mindy notes that this specific chemical was chosen because it is "less harmful" than other materials, such as heavy metals or sulfur, and could potentially help reverse some atmospheric damage.

A Temporary Measure, Not a Permanent Solution

Despite the ingenuity of this project, the hosts emphasize that geo-solar engineering is "not a solution to climate change." Mindy compares it to "putting tape over your leaky nose"; while it might provide a temporary fix to hold things together, it does not address the underlying cause of the problem. Referring to the "IPCC (Intergovernmental Panel on Climate Change)" report from 2018, the hosts remind listeners that humanity has a very limited window to "turn this ship around" and address the root causes of climate change. Ultimately, while technology like geo-solar engineering might "buy us more time," systemic change remains the only permanent path forward for the health of our planet.

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wobbling your way through the work week.
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music to your ears
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get on with the show
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take something too far
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📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.
Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.
Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.

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