Why heat waves disproportionately impact minorities in US cities, and the researcher that critiqued his whole career on Twitter.In this episode:00:45 How heat waves kill unequallyResearchers are beginning to unpick how historic discrimination in city planning is making the recent heat waves in North America more deadly for some than others.News Feature: Racism is magnifying the deadly impact of rising city heat11:59 Research HighlightsA graphene layer can protect paintings from age, and a new and endangered species of ‘fairy lantern’.Research Highlight: A graphene cloak keeps artworks’ colours agelesResearch Highlight: Newfound ‘fairy lantern’ could soon be snuffed out forever14:25 Self-criticismWhen researcher Nick Holmes decided to criticise his past papers, in 57 tweets, he found the reflection enlightening. Now he’s encouraging other researchers to self-criticise, to help speed scientific progress.World View: I critiqued my past papers on social media — here’s what I learnt20:53 Briefing ChatWe discuss some highlights from the Nature Briefing. This time, Richard Branson’s commercial space flight, and the Maori perspective on Antarctic conservation.The Washington Post: Richard Branson and his Virgin Galactic crew are safely back from space, ushering in a new eraThe New York Times: The Maori Vision of Antarctica’s Future (intermittent paywall)Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.

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“What did the council decide on item 42?” — answered with the speaker and the moment.