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 unequally

Researchers 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 heat

11:59 Research Highlights

A graphene layer can protect paintings from age, and a new and endangered species of ‘fairy lantern’.

Research Highlight: A graphene cloak keeps artworks’ colours ageles

Research Highlight: Newfound ‘fairy lantern’ could soon be snuffed out forever

14:25 Self-criticism

When 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 learnt

20:53 Briefing Chat

We 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 era

The New York Times: The Maori Vision of Antarctica’s Future (intermittent paywall)