The rise of allergies

By 2050, half the world's population could be affected by at least one allergy. Is climate change to blame?

https://p.dw.com/p/46tBo

Interviewees featured in this episode:

Claudia Traidl-Hoffmann, professor of environmental medicine at the University of Augsburg

Johannes Mazomeit, German botanist with the environmental group Pollichia

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