Prevent Coronavirus From Spreading In Schools, Why Leaves Fall When They Do And A Book On How Nature Copes With The Crisis | Science

Many schools closed in the spring, during the first wave of the coronavirus pandemic. Many opened in the fall. Writer Jennifer Couzin-Frankel joins host Sarah Crespi to talk about what was learned in the spring about how coronavirus spreads in schools that could help keep children safe as cases increase once again.

Also this week: What causes leaves to fall off deciduous trees when they do – is it the short, cold nights? Or is the moment of the so-called “leaf senescence” linked to when spring arrives? Sarah spoke to Constantin Zohner, a chief scientist at ETH Zurich’s Institute for Integrative Biology, about his study of tree leaf timing. Sarah also spoke to commentary author Christy Rollinson, forest ecologist at Morton Arboretum, about how important these trees are and when their leaves fall for climate change.

In the book segment, host Kiki Sanford talks to Ruth DeFries about her book, What would nature do? A guide to our uncertain times.

This week’s episode was produced with the help of Podigy.

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