Scientists are examining how ‘blood rain’ affects soil microbiome, with Portuguese vineyards a particular focus Dust events, when thousands of tonnes of fine sand whipped up from the Sahara are dumped over Europe, are becoming more intense. These sometimes produce “blood rain” that leaves visibl...

Source: [Guardian International](https://www.theguardian.com/news/2026/jun/19/weatherwatch-saharan-dust-drops-microorganisms-european-soil)

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