As heat waves become more frequent and deadly around the world, we consider how <a href="https://www.economist.com/what-if/2021/07/03/what-if-a-deadly-heat-wave-hit-india?utm_campaign=world-ahead&amp;utm_medium=podcast&amp;utm_source=third-party-host&amp;utm_content=show-notes" rel="noopener noreferrer" target="_blank">two cities in India might weather a deadly one in 2041</a>. Kim Stanley Robinson, science-fiction writer and author of “The Ministry for the Future”, tells us how heat waves could spur humanity’s response to climate change. And we imagine a future in which <a href="https://www.economist.com/what-if/2021/07/03/what-if-dementia-was-preventable-and-treatable?utm_campaign=world-ahead&amp;utm_medium=podcast&amp;utm_source=third-party-host&amp;utm_content=show-notes" rel="noopener noreferrer" target="_blank">dementia is preventable and treatable</a>. How might that come about? Tom Standage hosts&nbsp;&nbsp;Subscribe to The Economist for full access to print, digital and audio editions: <a href="http://www.economist.com/podcastoffer" rel="noopener noreferrer" target="_blank">www.economist.com/podcastoffer</a>&nbsp;&nbsp;Music by Chris Zabriskie "Candlepower" (CC by 4.0) &#10;&nbsp; <hr>See <a style='color: grey; ' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for privacy and opt-out information.

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The World Ahead: The heat is on

The Economist