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Outside/In

Plan B

Outside/In

NHPR

Society & Culture, Documentary, Natural Sciences, Nature, Science

4.71.5K Ratings

🗓️ 20 June 2019

⏱️ 33 minutes

🧾️ Download transcript

Summary

Ever since the threat of climate change was first made public, scientists have offered the possibility of a get-out-of-jail-free card: geoengineering. While reducing emissions is hard and complicated, why not just engineer the Earth's atmosphere in the meantime? Decades later, the science of geoengineering is still in its infancy, but a growing number of researchers are trying to change that.  Should they? Check out our website, outsideinradio.org And follow us on Twitterand Instagram Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

It's been a while since we've had a dramatic reading.

0:02.0

Shall we start with a dramatic reading?

0:04.0

The climatic changes that may be produced by the increased CO2 content

0:08.0

could be deleterious from the point of view of human beings.

0:13.0

This is the very first government report to mention climate change,

0:18.0

submitted to President Lyndon Johnson in 1965.

0:22.0

The possibilities of deliberately bringing about countervailing climatic

0:26.2

changes, therefore, need to be thoroughly explored. The report lays out the sources of CO2, dirt, fossil fuels, the possible downsides of global warming,

0:36.8

which you know already, and then without even momentary contemplation of ceasing emissions,

0:41.5

pivots directly to this. A change in the radiation balance. of could be produced by raising the albedo or reflectivity of the earth.

0:55.0

Such a change of albedo could be brought about, for example, by spreading very small, reflecting particles over large oceanic areas.

1:04.0

Just to lay it out, this report is saying,

1:07.0

global warming is a problem, yes, but to solve it,

1:10.0

we could just spread something reflective over all of the oceans like glitter for example

1:15.5

five million square miles of them that's less than 4% of the surface area of the world salt

1:20.0

water this might be the original sin of what's called geoengineering.

1:27.0

Reading this makes it feel like we gave up on avoiding climate change before it had even really

1:32.2

started.

1:33.6

The report even estimates what it would cost.

1:35.9

It says it would be pretty cheap.

1:37.2

Thus a 1% change in reflectivity

1:39.7

might be brought about for about $500 million a year, considering the extraordinary, economic, and

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