Babbage: Keeping it cool

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The Economist: Babbage

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Solar geoengineering has the potential to help counteract global warming, so why are scientists so cautious about it? Host Kenneth Cukier also explores a new, green idea that could revolutionise air conditioning. And our obituaries editor remembers Steven Weinberg, a Nobel laureate in physics who united two of the known forces in the universe.For full access to The Economist’s print, digital and audio editions subscribe at economist.com/podcastoffer and sign up for our new weekly science newsletter at economist.com/simplyscience.  See acast.com/privacy for privacy and opt-out information.