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Ozone Depletion

Climate skeptics like to argue that species – mankind included – can adapt to climate change, but there are some things to which no one can adapt. One of them is ultraviolet radiation. But more UV radiation is apparently what’s…
April 28, 2005

Climate skeptics like to argue that species – mankind included – can adapt to climate change, but there are some things to which no one can adapt. One of them is ultraviolet radiation.

But more UV radiation is apparently what’s in store, according to this article in The Guardian: “The protective ozone layer over the Arctic has thinned this winter to the lowest levels since records began, alarming scientists who believed it had begun to heal.”

According to researchers at Cambridge University, it’s not increased pollution but instead climate change that is making ozone depletion worse. At high altitudes, the researchers conclude, 50 percent of the protective layer had been destroyed. Say the scientists involved, “The pollution levels have levelled off but changes in the atmosphere have made it easier for the chemical reactions to take place that allow pollutants to destroy ozone. With these changes likely to continue and get worse as global warming increases, then ozone will be further depleted even if the level of pollution is going down.”

Read The Guardian article for the exact details of the science involved, which is somewhat complicated.

Deep Dive

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Five poems about the mind

DREAM VENDING MACHINE I feed it coins and watch the spring coil back,the clunk of a vacuum-packed, foil-wrappeddream dropping into the tray. It dispenses all kinds of dreams—bad dreams, good dreams,short nightmares to stave off worse ones, recurring dreams with a teacake marshmallow center.Hardboiled caramel dreams to tuck in your cheek,a bag of orange dreams…

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lucid dreaming concept
lucid dreaming concept

I taught myself to lucid dream. You can too.

We still don’t know much about the experience of being aware that you’re dreaming—but a few researchers think it could help us find out more about how the brain works.

panpsychism concept
panpsychism concept

Is everything in the world a little bit conscious?

The idea that consciousness is widespread is attractive to many for intellectual and, perhaps, also emotional
reasons. But can it be tested? Surprisingly, perhaps it can.

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Illustration by Rose WongIllustration by Rose Wong

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