In this episode:

00:46 How telephone teaching could boost education during school shutdowns

Nature: Pick up the phone! Phone calls with tutors keep kids learning when schools shut down

11:42 Research Highlights

Nature: Super-precise optical clocks in four nations tick in harmony

Nature: These greenhouse-gas sources have trotters and snouts

14:15 Why atlases might need an update

Nature: Hello Equal Earth: what the UN’s new world map will change

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