Stock Photo - PRODUCTION - 13 March 2020, Baden-Wuerttemberg, Wangen im Allgäu: Several cows stand in the barn of farmer Gerold Mohr. When they digest, the animals produce methane that is particularly harmful to the climate. But researchers warn against jumping to conclusions and are looking for several solutions to the problem - with feed, fences and purified burps. (to dpa: Cows for the climate - How milk and meat should become greener) Photo: Felix Kästle/dpa. - Wangen im Allgäu/Baden-Wuerttemberg/Germany

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