John Donvan:
Some of our best debates ever are those where we stretched hard to look over the horizon at coming technologies that have potential to change how we live, and each time asking a key question, "Just because this technology perhaps can work, does that mean that it should be put to work?" We have asked that in relation to artificial intelligence, and genetic engineering, and a number of other similar technological developments, similar in the sense that, what once seemed far fetched has become at least plausible, and therefore we think debatable.
And now, over that same horizon, we see an idea taking shape that requires a mouthful of syllables to give its name, "solar geoengineering," also known as solar radiation management or modification. And that is a proposed set of technologies that aim to reflect some sunlight and reduce the inflow into the atmosphere of solar energy, thereby partially reducing global temperatures. That's the idea.
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