A dusty metal cupboard in a back room in a school library in the northern Serbia town of Sremski Karlovci seems an unlikely location to uncover the world’s second-oldest grapevine herbarium samples.

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Scattered rain and snow showers are expected. The high will be 44°. Unhealthy (151-200) Primary pollutant PM2.5 39 μg/m³ Pressure is the weight of the air in the atmosphere. It is normalized to ...