Staff Writer Jon Cohen joins host Sarah Crespi to talk about using monoclonal antibodies to treat or prevent infection by SARS-CoV-2. Many companies and researchers are rushing to design and test this type of treatment , which proved effective in combating Ebola last year. See all of our News coverage of the pandemic here , and all of our Research and Editorials here .

And Karen Holl , a professor of environmental studies at the University of California, Santa Cruz, joins Sarah to discuss the proper planning of tree-planting campaigns . It turns out that just putting a tree in the ground is not enough to stop climate change and reforest the planet.

This week’s episode was produced with help from Podigy .

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